diff --git a/GFramework.Game.Tests/Config/YamlConfigLoaderTests.cs b/GFramework.Game.Tests/Config/YamlConfigLoaderTests.cs
index 29d57119..a8f45394 100644
--- a/GFramework.Game.Tests/Config/YamlConfigLoaderTests.cs
+++ b/GFramework.Game.Tests/Config/YamlConfigLoaderTests.cs
@@ -558,6 +558,50 @@ public class YamlConfigLoaderTests
         });
     }
 
+    /// <summary>
+    ///     验证大数值配合十进制步进时，会沿用 JS 工具侧的 <c>multipleOf</c> 容差策略。
+    /// </summary>
+    [Test]
+    public async Task LoadAsync_Should_Accept_Large_Decimal_Number_When_MultipleOf_Matches_Js_Tolerance()
+    {
+        CreateConfigFile(
+            "monster/slime.yaml",
+            """
+            id: 1
+            dropRate: 10000000.2
+            """);
+        CreateSchemaFile(
+            "schemas/monster.schema.json",
+            """
+            {
+              "type": "object",
+              "required": ["id", "dropRate"],
+              "properties": {
+                "id": { "type": "integer" },
+                "dropRate": {
+                  "type": "number",
+                  "multipleOf": 0.1
+                }
+              }
+            }
+            """);
+
+        var loader = new YamlConfigLoader(_rootPath)
+            .RegisterTable<int, MonsterNumberConfigStub>("monster", "monster", "schemas/monster.schema.json",
+                static config => config.Id);
+        var registry = new ConfigRegistry();
+
+        await loader.LoadAsync(registry);
+
+        var table = registry.GetTable<int, MonsterNumberConfigStub>("monster");
+
+        Assert.Multiple(() =>
+        {
+            Assert.That(table.Count, Is.EqualTo(1));
+            Assert.That(table.Get(1).DropRate, Is.EqualTo(10000000.2d));
+        });
+    }
+
     /// <summary>
     ///     验证科学计数法数值会按 <c>number</c> 类型被运行时接受。
     /// </summary>
diff --git a/GFramework.Game/Config/YamlConfigSchemaValidator.cs b/GFramework.Game/Config/YamlConfigSchemaValidator.cs
index f7dc74c4..efeda8fa 100644
--- a/GFramework.Game/Config/YamlConfigSchemaValidator.cs
+++ b/GFramework.Game/Config/YamlConfigSchemaValidator.cs
@@ -1745,9 +1745,9 @@ internal static class YamlConfigSchemaValidator
 
     /// <summary>
     ///     判断数值是否满足 <c>multipleOf</c>。
-    ///     双精度浮点比较会保留一个与步进量级相关的微小容差，
-    ///     以避免运行时与 JS 工具侧在 0.1 / 0.01 这类十进制步进上出现伪失败，
-    ///     同时避免值越大就无限放宽合法余数范围。
+    ///     双精度浮点比较会在商空间保留一个与商量级相关的微小容差，
+    ///     以对齐 JS 工具侧对 0.1 / 0.01 这类十进制步进的判定方式，
+    ///     避免出现“编辑器通过、运行时拒绝”的跨环境漂移。
     /// </summary>
     /// <param name="value">当前值。</param>
     /// <param name="divisor">步进约束。</param>
@@ -1756,8 +1756,8 @@ internal static class YamlConfigSchemaValidator
     {
         var quotient = value / divisor;
         var nearestInteger = Math.Round(quotient);
-        var tolerance = 1e-9 * Math.Max(1d, Math.Abs(divisor));
-        return Math.Abs(value - (nearestInteger * divisor)) <= tolerance;
+        var tolerance = 1e-9 * Math.Max(1d, Math.Abs(quotient));
+        return Math.Abs(quotient - nearestInteger) <= tolerance;
     }
 
     /// <summary>