diff --git a/src/main/java/com/gaotao/modules/system/dao/SensitiveFieldChangeLogMapper.java b/src/main/java/com/gaotao/modules/system/dao/SensitiveFieldChangeLogMapper.java
new file mode 100644
index 0000000..912c619
--- /dev/null
+++ b/src/main/java/com/gaotao/modules/system/dao/SensitiveFieldChangeLogMapper.java
@@ -0,0 +1,15 @@
+package com.gaotao.modules.system.dao;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.gaotao.modules.system.entity.SensitiveFieldChangeLog;
+import org.apache.ibatis.annotations.Mapper;
+
+/**
+ * @Description 敏感字段变更记录Mapper - rqrq
+ * @Author rqrq
+ * @Date 2025/11/15
+ */
+@Mapper
+public interface SensitiveFieldChangeLogMapper extends BaseMapper<SensitiveFieldChangeLog> {
+}
+
diff --git a/src/main/java/com/gaotao/modules/system/entity/SensitiveFieldChangeLog.java b/src/main/java/com/gaotao/modules/system/entity/SensitiveFieldChangeLog.java
new file mode 100644
index 0000000..31825b8
--- /dev/null
+++ b/src/main/java/com/gaotao/modules/system/entity/SensitiveFieldChangeLog.java
@@ -0,0 +1,90 @@
+package com.gaotao.modules.system.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.util.Date;
+
+/**
+ * @Description 敏感字段变更记录表实体类 - rqrq
+ * @Author rqrq
+ * @Date 2025/11/15
+ */
+@Data
+@TableName("sensitive_field_change_log")
+public class SensitiveFieldChangeLog {
+    
+    /**
+     * 主键，自增 - rqrq
+     */
+    @TableId(type = IdType.AUTO)
+    private Long id;
+    
+    /**
+     * 工厂编码 - rqrq
+     */
+    private String site;
+    
+    /**
+     * 功能页面 - rqrq
+     */
+    private String functionPage;
+    
+    /**
+     * 操作名称 - rqrq
+     */
+    private String operationName;
+    
+    /**
+     * 操作对象 - rqrq
+     */
+    private String operationObject;
+    
+    /**
+     * 表名 - rqrq
+     */
+    private String tableName;
+    
+    /**
+     * 字段名 - rqrq
+     */
+    private String fieldName;
+    
+    /**
+     * 原数值 - rqrq
+     */
+    private String oldValue;
+    
+    /**
+     * 新数值 - rqrq
+     */
+    private String newValue;
+    
+    /**
+     * 操作人 - rqrq
+     */
+    private String operator;
+    
+    /**
+     * 操作时间 - rqrq
+     */
+    private Date operationTime;
+    
+    /**
+     * 关联表的主键ID - rqrq
+     */
+    private Long recordId;
+    
+    /**
+     * 操作类型（UPDATE/INSERT/DELETE）- rqrq
+     */
+    private String operationType;
+    
+    /**
+     * 操作人IP地址 - rqrq
+     */
+    private String ipAddress;
+}
+
diff --git a/src/main/java/com/gaotao/modules/system/service/SensitiveFieldChangeLogService.java b/src/main/java/com/gaotao/modules/system/service/SensitiveFieldChangeLogService.java
new file mode 100644
index 0000000..5c45878
--- /dev/null
+++ b/src/main/java/com/gaotao/modules/system/service/SensitiveFieldChangeLogService.java
@@ -0,0 +1,20 @@
+package com.gaotao.modules.system.service;
+
+import com.gaotao.modules.system.entity.SensitiveFieldChangeLog;
+
+/**
+ * @Description 敏感字段变更记录服务接口 - rqrq
+ * @Author rqrq
+ * @Date 2025/11/15
+ */
+public interface SensitiveFieldChangeLogService {
+    
+    /**
+     * @Description 记录字段变更 - rqrq
+     * @param log 变更日志
+     * @author rqrq
+     * @date 2025/11/15
+     */
+    void recordFieldChange(SensitiveFieldChangeLog log);
+}
+
diff --git a/src/main/java/com/gaotao/modules/system/service/impl/SensitiveFieldChangeLogServiceImpl.java b/src/main/java/com/gaotao/modules/system/service/impl/SensitiveFieldChangeLogServiceImpl.java
new file mode 100644
index 0000000..57396f7
--- /dev/null
+++ b/src/main/java/com/gaotao/modules/system/service/impl/SensitiveFieldChangeLogServiceImpl.java
@@ -0,0 +1,37 @@
+package com.gaotao.modules.system.service.impl;
+
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.gaotao.modules.system.dao.SensitiveFieldChangeLogMapper;
+import com.gaotao.modules.system.entity.SensitiveFieldChangeLog;
+import com.gaotao.modules.system.service.SensitiveFieldChangeLogService;
+import org.springframework.stereotype.Service;
+
+/**
+ * @Description 敏感字段变更记录服务实现类 - rqrq
+ * @Author rqrq
+ * @Date 2025/11/15
+ */
+@Service
+public class SensitiveFieldChangeLogServiceImpl 
+        extends ServiceImpl<SensitiveFieldChangeLogMapper, SensitiveFieldChangeLog>
+        implements SensitiveFieldChangeLogService {
+    
+    /**
+     * @Description 记录字段变更 - rqrq
+     * @param log 变更日志
+     * @author rqrq
+     * @date 2025/11/15
+     */
+    @Override
+    public void recordFieldChange(SensitiveFieldChangeLog log) {
+        System.out.println("开始记录敏感字段变更 - rqrq：表=" + log.getTableName() 
+                + ", 字段=" + log.getFieldName() 
+                + ", 原值=" + log.getOldValue() 
+                + ", 新值=" + log.getNewValue());
+        
+        this.save(log);
+        
+        System.out.println("敏感字段变更记录完成 - rqrq");
+    }
+}
+