diff --git a/GFramework.Game.Tests/Config/YamlConfigLoaderTests.cs b/GFramework.Game.Tests/Config/YamlConfigLoaderTests.cs
new file mode 100644
index 0000000..f551eb6
--- /dev/null
+++ b/GFramework.Game.Tests/Config/YamlConfigLoaderTests.cs
@@ -0,0 +1,202 @@
+using System.IO;
+using GFramework.Game.Config;
+
+namespace GFramework.Game.Tests.Config;
+
+/// <summary>
+///     验证 YAML 配置加载器的目录扫描与注册行为。
+/// </summary>
+[TestFixture]
+public class YamlConfigLoaderTests
+{
+    /// <summary>
+    ///     为每个测试创建独立临时目录，避免文件系统状态互相污染。
+    /// </summary>
+    [SetUp]
+    public void SetUp()
+    {
+        _rootPath = Path.Combine(Path.GetTempPath(), "GFramework.ConfigTests", Guid.NewGuid().ToString("N"));
+        Directory.CreateDirectory(_rootPath);
+    }
+
+    /// <summary>
+    ///     清理测试期间创建的临时目录。
+    /// </summary>
+    [TearDown]
+    public void TearDown()
+    {
+        if (Directory.Exists(_rootPath))
+        {
+            Directory.Delete(_rootPath, true);
+        }
+    }
+
+    private string _rootPath = null!;
+
+    /// <summary>
+    ///     验证加载器能够扫描 YAML 文件并将结果写入注册表。
+    /// </summary>
+    [Test]
+    public async Task LoadAsync_Should_Register_Table_From_Yaml_Files()
+    {
+        CreateConfigFile(
+            "monster/slime.yaml",
+            """
+            id: 1
+            name: Slime
+            hp: 10
+            """);
+        CreateConfigFile(
+            "monster/goblin.yml",
+            """
+            id: 2
+            name: Goblin
+            hp: 30
+            """);
+
+        var loader = new YamlConfigLoader(_rootPath)
+            .RegisterTable<int, MonsterConfigStub>("monster", "monster", static config => config.Id);
+        var registry = new ConfigRegistry();
+
+        await loader.LoadAsync(registry);
+
+        var table = registry.GetTable<int, MonsterConfigStub>("monster");
+
+        Assert.Multiple(() =>
+        {
+            Assert.That(table.Count, Is.EqualTo(2));
+            Assert.That(table.Get(1).Name, Is.EqualTo("Slime"));
+            Assert.That(table.Get(2).Hp, Is.EqualTo(30));
+        });
+    }
+
+    /// <summary>
+    ///     验证注册的配置目录不存在时会抛出清晰错误。
+    /// </summary>
+    [Test]
+    public void LoadAsync_Should_Throw_When_Config_Directory_Does_Not_Exist()
+    {
+        var loader = new YamlConfigLoader(_rootPath)
+            .RegisterTable<int, MonsterConfigStub>("monster", "monster", static config => config.Id);
+        var registry = new ConfigRegistry();
+
+        var exception = Assert.ThrowsAsync<DirectoryNotFoundException>(async () => await loader.LoadAsync(registry));
+
+        Assert.Multiple(() =>
+        {
+            Assert.That(exception, Is.Not.Null);
+            Assert.That(exception!.Message, Does.Contain("monster"));
+            Assert.That(registry.Count, Is.EqualTo(0));
+        });
+    }
+
+    /// <summary>
+    ///     验证某个配置表加载失败时，注册表不会留下部分成功的中间状态。
+    /// </summary>
+    [Test]
+    public void LoadAsync_Should_Not_Mutate_Registry_When_A_Later_Table_Fails()
+    {
+        CreateConfigFile(
+            "monster/slime.yaml",
+            """
+            id: 1
+            name: Slime
+            hp: 10
+            """);
+
+        var registry = new ConfigRegistry();
+        registry.RegisterTable(
+            "existing",
+            new InMemoryConfigTable<int, ExistingConfigStub>(
+                new[]
+                {
+                    new ExistingConfigStub(100, "Original")
+                },
+                static config => config.Id));
+
+        var loader = new YamlConfigLoader(_rootPath)
+            .RegisterTable<int, MonsterConfigStub>("monster", "monster", static config => config.Id)
+            .RegisterTable<int, MonsterConfigStub>("broken", "broken", static config => config.Id);
+
+        Assert.ThrowsAsync<DirectoryNotFoundException>(async () => await loader.LoadAsync(registry));
+
+        Assert.Multiple(() =>
+        {
+            Assert.That(registry.Count, Is.EqualTo(1));
+            Assert.That(registry.HasTable("monster"), Is.False);
+            Assert.That(registry.GetTable<int, ExistingConfigStub>("existing").Get(100).Name, Is.EqualTo("Original"));
+        });
+    }
+
+    /// <summary>
+    ///     验证非法 YAML 会被包装成带文件路径的反序列化错误。
+    /// </summary>
+    [Test]
+    public void LoadAsync_Should_Throw_With_File_Path_When_Yaml_Is_Invalid()
+    {
+        CreateConfigFile(
+            "monster/slime.yaml",
+            """
+            id: [1
+            name: Slime
+            """);
+
+        var loader = new YamlConfigLoader(_rootPath)
+            .RegisterTable<int, MonsterConfigStub>("monster", "monster", static config => config.Id);
+        var registry = new ConfigRegistry();
+
+        var exception = Assert.ThrowsAsync<InvalidOperationException>(async () => await loader.LoadAsync(registry));
+
+        Assert.Multiple(() =>
+        {
+            Assert.That(exception, Is.Not.Null);
+            Assert.That(exception!.Message, Does.Contain("slime.yaml"));
+            Assert.That(registry.Count, Is.EqualTo(0));
+        });
+    }
+
+    /// <summary>
+    ///     创建测试用配置文件。
+    /// </summary>
+    /// <param name="relativePath">相对根目录的文件路径。</param>
+    /// <param name="content">文件内容。</param>
+    private void CreateConfigFile(string relativePath, string content)
+    {
+        var fullPath = Path.Combine(_rootPath, relativePath.Replace('/', Path.DirectorySeparatorChar));
+        var directory = Path.GetDirectoryName(fullPath);
+        if (!string.IsNullOrEmpty(directory))
+        {
+            Directory.CreateDirectory(directory);
+        }
+
+        File.WriteAllText(fullPath, content);
+    }
+
+    /// <summary>
+    ///     用于 YAML 加载测试的最小怪物配置类型。
+    /// </summary>
+    private sealed class MonsterConfigStub
+    {
+        /// <summary>
+        ///     获取或设置主键。
+        /// </summary>
+        public int Id { get; set; }
+
+        /// <summary>
+        ///     获取或设置名称。
+        /// </summary>
+        public string Name { get; set; } = string.Empty;
+
+        /// <summary>
+        ///     获取或设置生命值。
+        /// </summary>
+        public int Hp { get; set; }
+    }
+
+    /// <summary>
+    ///     用于验证注册表一致性的现有配置类型。
+    /// </summary>
+    /// <param name="Id">配置主键。</param>
+    /// <param name="Name">配置名称。</param>
+    private sealed record ExistingConfigStub(int Id, string Name);
+}
\ No newline at end of file
diff --git a/GFramework.Game/Config/YamlConfigLoader.cs b/GFramework.Game/Config/YamlConfigLoader.cs
new file mode 100644
index 0000000..f26308d
--- /dev/null
+++ b/GFramework.Game/Config/YamlConfigLoader.cs
@@ -0,0 +1,269 @@
+using System.IO;
+using GFramework.Game.Abstractions.Config;
+using YamlDotNet.Serialization;
+using YamlDotNet.Serialization.NamingConventions;
+
+namespace GFramework.Game.Config;
+
+/// <summary>
+///     基于文件目录的 YAML 配置加载器。
+///     该实现用于 Runtime MVP 的文本配置接入阶段，通过显式注册表定义描述要加载的配置域，
+///     再在一次加载流程中统一解析并写入配置注册表。
+/// </summary>
+public sealed class YamlConfigLoader : IConfigLoader
+{
+    private const string RootPathCannotBeNullOrWhiteSpaceMessage = "Root path cannot be null or whitespace.";
+    private const string TableNameCannotBeNullOrWhiteSpaceMessage = "Table name cannot be null or whitespace.";
+    private const string RelativePathCannotBeNullOrWhiteSpaceMessage = "Relative path cannot be null or whitespace.";
+
+    private readonly IDeserializer _deserializer;
+    private readonly List<IYamlTableRegistration> _registrations = new();
+    private readonly string _rootPath;
+
+    /// <summary>
+    ///     使用指定配置根目录创建 YAML 配置加载器。
+    /// </summary>
+    /// <param name="rootPath">配置根目录。</param>
+    /// <exception cref="ArgumentException">当 <paramref name="rootPath" /> 为空时抛出。</exception>
+    public YamlConfigLoader(string rootPath)
+    {
+        if (string.IsNullOrWhiteSpace(rootPath))
+        {
+            throw new ArgumentException(RootPathCannotBeNullOrWhiteSpaceMessage, nameof(rootPath));
+        }
+
+        _rootPath = rootPath;
+        _deserializer = new DeserializerBuilder()
+            .WithNamingConvention(CamelCaseNamingConvention.Instance)
+            .IgnoreUnmatchedProperties()
+            .Build();
+    }
+
+    /// <summary>
+    ///     获取配置根目录。
+    /// </summary>
+    public string RootPath => _rootPath;
+
+    /// <summary>
+    ///     获取当前已注册的配置表定义数量。
+    /// </summary>
+    public int RegistrationCount => _registrations.Count;
+
+    /// <inheritdoc />
+    public async Task LoadAsync(IConfigRegistry registry, CancellationToken cancellationToken = default)
+    {
+        ArgumentNullException.ThrowIfNull(registry);
+
+        var loadedTables = new List<(string name, IConfigTable table)>(_registrations.Count);
+
+        foreach (var registration in _registrations)
+        {
+            cancellationToken.ThrowIfCancellationRequested();
+            loadedTables.Add(await registration.LoadAsync(_rootPath, _deserializer, cancellationToken));
+        }
+
+        // 仅当本轮所有配置表都成功加载后才写入注册表，避免暴露部分成功的中间状态。
+        foreach (var (name, table) in loadedTables)
+        {
+            RegistrationDispatcher.Register(registry, name, table);
+        }
+    }
+
+    /// <summary>
+    ///     注册一个 YAML 配置表定义。
+    ///     主键提取逻辑由调用方显式提供，以避免在 Runtime MVP 阶段引入额外特性或约定推断。
+    /// </summary>
+    /// <typeparam name="TKey">配置主键类型。</typeparam>
+    /// <typeparam name="TValue">配置值类型。</typeparam>
+    /// <param name="tableName">配置表名称。</param>
+    /// <param name="relativePath">相对配置根目录的子目录。</param>
+    /// <param name="keySelector">配置项主键提取器。</param>
+    /// <param name="comparer">可选主键比较器。</param>
+    /// <returns>当前加载器实例，以便链式注册。</returns>
+    public YamlConfigLoader RegisterTable<TKey, TValue>(
+        string tableName,
+        string relativePath,
+        Func<TValue, TKey> keySelector,
+        IEqualityComparer<TKey>? comparer = null)
+        where TKey : notnull
+    {
+        if (string.IsNullOrWhiteSpace(tableName))
+        {
+            throw new ArgumentException(TableNameCannotBeNullOrWhiteSpaceMessage, nameof(tableName));
+        }
+
+        if (string.IsNullOrWhiteSpace(relativePath))
+        {
+            throw new ArgumentException(RelativePathCannotBeNullOrWhiteSpaceMessage, nameof(relativePath));
+        }
+
+        ArgumentNullException.ThrowIfNull(keySelector);
+
+        _registrations.Add(new YamlTableRegistration<TKey, TValue>(tableName, relativePath, keySelector, comparer));
+        return this;
+    }
+
+    /// <summary>
+    ///     负责在非泛型配置表与泛型注册表方法之间做分派。
+    ///     该静态助手将运行时反射局部封装在加载器内部，避免向外暴露弱类型注册 API。
+    /// </summary>
+    private static class RegistrationDispatcher
+    {
+        /// <summary>
+        ///     将强类型配置表写入注册表。
+        /// </summary>
+        /// <param name="registry">目标配置注册表。</param>
+        /// <param name="name">配置表名称。</param>
+        /// <param name="table">已加载的配置表实例。</param>
+        /// <exception cref="InvalidOperationException">当传入表未实现强类型配置表契约时抛出。</exception>
+        public static void Register(IConfigRegistry registry, string name, IConfigTable table)
+        {
+            var tableInterface = table.GetType()
+                .GetInterfaces()
+                .FirstOrDefault(static type =>
+                    type.IsGenericType && type.GetGenericTypeDefinition() == typeof(IConfigTable<,>));
+
+            if (tableInterface == null)
+            {
+                throw new InvalidOperationException(
+                    $"Loaded config table '{name}' does not implement '{typeof(IConfigTable<,>).Name}'.");
+            }
+
+            var genericArguments = tableInterface.GetGenericArguments();
+            var method = typeof(IConfigRegistry)
+                .GetMethod(nameof(IConfigRegistry.RegisterTable))!
+                .MakeGenericMethod(genericArguments[0], genericArguments[1]);
+
+            method.Invoke(registry, new object[] { name, table });
+        }
+    }
+
+    /// <summary>
+    ///     定义 YAML 配置表注册项的统一内部契约。
+    /// </summary>
+    private interface IYamlTableRegistration
+    {
+        /// <summary>
+        ///     从指定根目录加载配置表。
+        /// </summary>
+        /// <param name="rootPath">配置根目录。</param>
+        /// <param name="deserializer">YAML 反序列化器。</param>
+        /// <param name="cancellationToken">取消令牌。</param>
+        /// <returns>已加载的配置表名称与配置表实例。</returns>
+        Task<(string name, IConfigTable table)> LoadAsync(
+            string rootPath,
+            IDeserializer deserializer,
+            CancellationToken cancellationToken);
+    }
+
+    /// <summary>
+    ///     YAML 配置表注册项。
+    /// </summary>
+    /// <typeparam name="TKey">配置主键类型。</typeparam>
+    /// <typeparam name="TValue">配置项值类型。</typeparam>
+    private sealed class YamlTableRegistration<TKey, TValue> : IYamlTableRegistration
+        where TKey : notnull
+    {
+        private readonly IEqualityComparer<TKey>? _comparer;
+        private readonly Func<TValue, TKey> _keySelector;
+
+        /// <summary>
+        ///     初始化 YAML 配置表注册项。
+        /// </summary>
+        /// <param name="name">配置表名称。</param>
+        /// <param name="relativePath">相对配置根目录的子目录。</param>
+        /// <param name="keySelector">配置项主键提取器。</param>
+        /// <param name="comparer">可选主键比较器。</param>
+        public YamlTableRegistration(
+            string name,
+            string relativePath,
+            Func<TValue, TKey> keySelector,
+            IEqualityComparer<TKey>? comparer)
+        {
+            Name = name;
+            RelativePath = relativePath;
+            _keySelector = keySelector;
+            _comparer = comparer;
+        }
+
+        /// <summary>
+        ///     获取配置表名称。
+        /// </summary>
+        public string Name { get; }
+
+        /// <summary>
+        ///     获取相对配置根目录的子目录。
+        /// </summary>
+        public string RelativePath { get; }
+
+        /// <inheritdoc />
+        public async Task<(string name, IConfigTable table)> LoadAsync(
+            string rootPath,
+            IDeserializer deserializer,
+            CancellationToken cancellationToken)
+        {
+            var directoryPath = Path.Combine(rootPath, RelativePath);
+            if (!Directory.Exists(directoryPath))
+            {
+                throw new DirectoryNotFoundException(
+                    $"Config directory '{directoryPath}' was not found for table '{Name}'.");
+            }
+
+            var values = new List<TValue>();
+            var files = Directory
+                .EnumerateFiles(directoryPath, "*.*", SearchOption.TopDirectoryOnly)
+                .Where(static path =>
+                    path.EndsWith(".yaml", StringComparison.OrdinalIgnoreCase) ||
+                    path.EndsWith(".yml", StringComparison.OrdinalIgnoreCase))
+                .OrderBy(static path => path, StringComparer.Ordinal)
+                .ToArray();
+
+            foreach (var file in files)
+            {
+                cancellationToken.ThrowIfCancellationRequested();
+
+                string yaml;
+                try
+                {
+                    yaml = await File.ReadAllTextAsync(file, cancellationToken);
+                }
+                catch (Exception exception)
+                {
+                    throw new InvalidOperationException(
+                        $"Failed to read config file '{file}' for table '{Name}'.",
+                        exception);
+                }
+
+                try
+                {
+                    var value = deserializer.Deserialize<TValue>(yaml);
+
+                    if (value == null)
+                    {
+                        throw new InvalidOperationException("YAML content was deserialized to null.");
+                    }
+
+                    values.Add(value);
+                }
+                catch (Exception exception)
+                {
+                    throw new InvalidOperationException(
+                        $"Failed to deserialize config file '{file}' for table '{Name}' as '{typeof(TValue).Name}'.",
+                        exception);
+                }
+            }
+
+            try
+            {
+                var table = new InMemoryConfigTable<TKey, TValue>(values, _keySelector, _comparer);
+                return (Name, table);
+            }
+            catch (Exception exception)
+            {
+                throw new InvalidOperationException(
+                    $"Failed to build config table '{Name}' from directory '{directoryPath}'.",
+                    exception);
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/GFramework.Game/GFramework.Game.csproj b/GFramework.Game/GFramework.Game.csproj
index 5bb94d9..6a81f01 100644
--- a/GFramework.Game/GFramework.Game.csproj
+++ b/GFramework.Game/GFramework.Game.csproj
@@ -14,5 +14,6 @@
     </ItemGroup>
     <ItemGroup>
         <PackageReference Include="Newtonsoft.Json" Version="13.0.4"/>
+        <PackageReference Include="YamlDotNet" Version="16.3.0"/>
     </ItemGroup>
 </Project>