diff --git a/modules/JiShe.CollectBus.Analyzers/ComplexTypeSourceAnalyzers.cs b/modules/JiShe.CollectBus.Analyzers/ComplexTypeSourceAnalyzers.cs
index 9212cda..925212e 100644
--- a/modules/JiShe.CollectBus.Analyzers/ComplexTypeSourceAnalyzers.cs
+++ b/modules/JiShe.CollectBus.Analyzers/ComplexTypeSourceAnalyzers.cs
@@ -577,19 +577,43 @@ namespace JiShe.CollectBus.IncrementalGenerator
                         var elementDeclaredName = element.Type.Name;//元组元素类型名称
 
                         initializerLines.Add(
-                           $"new EntityMemberInfo(" +
-                           $"\"{prop.Name}.{elementName}\", " +
-                           $"typeof({elementType}), " +
-                           $"typeof({elementType}).Name, " +//$"\"{elementDeclaredName}\", " +
-                           $"(e) => Get{prop.Name}_{elementName}(({entityType})e), " +
-                           $"(e, v) => Set{prop.Name}_{elementName}(({entityType})e, ({elementType})v))");
-                    }
-                }
-            }
+                        $"new EntityMemberInfo(" +
+                        $"\"{prop.Name}.{elementName}\", " +
+                        $"typeof({elementType}), " +
+                        $"GetValueTupleElementName(typeof({elementType})), " +//$"\"{elementDeclaredName}\", " +
+                        $"(e) => Get{prop.Name}_{elementName}(({entityType})e), " +
+                        $"(e, v) => Set{prop.Name}_{elementName}(({entityType})e, ({elementType})v))");
+                                        }
+                                    }
+                                }
 
-            code.AppendLine(string.Join(",\n", initializerLines));
-            code.AppendLine("    };");
-        }
+                                code.AppendLine(string.Join(",\n", initializerLines));
+                                code.AppendLine("    };");
+
+                                code.AppendLine(GetValueTupleElementName());
+                            }
+
+            private static string GetValueTupleElementName()
+            {
+                return """ 
+                    public static string GetValueTupleElementName(Type declaredType)
+                    { 
+                            string typeName;   
+                        // 处理可空类型
+                        if (declaredType.IsGenericType && declaredType.GetGenericTypeDefinition() == typeof(Nullable<>))
+                        {
+                            Type underlyingType = Nullable.GetUnderlyingType(declaredType);
+                            typeName = underlyingType.Name;
+                        }
+                        else
+                        {
+                            typeName = declaredType.Name;
+                        }
+
+                        return typeName;
+                    } 
+                """;
+            }
 
 
         private static string GenerateAttributeInitializer(AttributeData attribute)