diff --git a/src/main/java/com/yunhai/bschclassmanage/Repository/SyncLogRepository.java b/src/main/java/com/yunhai/bschclassmanage/Repository/SyncLogRepository.java
new file mode 100644
index 0000000..1773698
--- /dev/null
+++ b/src/main/java/com/yunhai/bschclassmanage/Repository/SyncLogRepository.java
@@ -0,0 +1,9 @@
+package com.yunhai.bschclassmanage.Repository;
+
+import com.yunhai.bschclassmanage.entity.SyncLog;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface SyncLogRepository extends JpaRepository<SyncLog, Long> {
+}
diff --git a/src/main/java/com/yunhai/bschclassmanage/annotation/SyncOpLog.java b/src/main/java/com/yunhai/bschclassmanage/annotation/SyncOpLog.java
new file mode 100644
index 0000000..2c22d26
--- /dev/null
+++ b/src/main/java/com/yunhai/bschclassmanage/annotation/SyncOpLog.java
@@ -0,0 +1,19 @@
+package com.yunhai.bschclassmanage.annotation;
+
+import com.yunhai.bschclassmanage.enums.SyncDataType;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * 标记一个方法需要记录"用户同步调用日志"。
+ * 由 SyncLogAspect 拦截，按 dataType 写入 sync_log 表。
+ */
+@Target(ElementType.METHOD)
+@Retention(RetentionPolicy.RUNTIME)
+public @interface SyncOpLog {
+    /** 该操作对应的同步数据类型枚举（作为默认的 value 元素，可用 @SyncOpLog(SyncDataType.X) 简写） */
+    SyncDataType value();
+}
diff --git a/src/main/java/com/yunhai/bschclassmanage/aspect/SyncLogAspect.java b/src/main/java/com/yunhai/bschclassmanage/aspect/SyncLogAspect.java
new file mode 100644
index 0000000..d66e69a
--- /dev/null
+++ b/src/main/java/com/yunhai/bschclassmanage/aspect/SyncLogAspect.java
@@ -0,0 +1,99 @@
+package com.yunhai.bschclassmanage.aspect;
+
+import com.alibaba.fastjson.JSON;
+import com.yunhai.bschclassmanage.annotation.SyncOpLog;
+import com.yunhai.bschclassmanage.entity.SyncLog;
+import com.yunhai.bschclassmanage.enums.SyncDataType;
+import com.yunhai.bschclassmanage.service.ISyncLogService;
+import com.yunhai.bschclassmanage.utils.OtherUtil;
+import com.yunhai.bschclassmanage.utils.SensitiveDataUtil;
+import com.yunhai.bschclassmanage.utils.UserContext;
+import lombok.extern.slf4j.Slf4j;
+import org.aspectj.lang.ProceedingJoinPoint;
+import org.aspectj.lang.annotation.Around;
+import org.aspectj.lang.annotation.Aspect;
+import org.aspectj.lang.reflect.MethodSignature;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.core.annotation.Order;
+import org.springframework.stereotype.Component;
+import org.springframework.util.StringUtils;
+
+import java.util.LinkedHashMap;
+import java.util.Map;
+
+/**
+ * 同步调用日志切面。
+ * 拦截所有标注 @SyncLog 的方法（当前仅 SyncUserBaseService），
+ * 统一采集：枚举类型 / 大类(Sync-Send) / 类名.方法名 / 操作人 / 学校 / IP / 脱敏入参 / 异常，
+ * 并在 finally 中异步落库（不影响主流程、异常照常抛出）。
+ */
+@Slf4j
+@Aspect
+@Component
+@Order(10)
+public class SyncLogAspect {
+
+    private static final int MAX_ERROR_MSG = 2000;
+
+    @Autowired
+    private ISyncLogService syncLogService;
+
+    @Around("@annotation(syncLog)")
+    public Object around(ProceedingJoinPoint pjp,SyncOpLog syncLog) throws Throwable {
+        SyncDataType dataType = syncLog.value();
+        String classMethod = pjp.getTarget().getClass().getName() + "." + pjp.getSignature().getName();
+        String jsonData = buildJsonData(pjp);
+
+        SyncLog entity = new SyncLog();
+        // 枚举类型 key/name
+        entity.setSyncDataTypeKey(dataType.getKey());
+        entity.setSyncDataTypeName(dataType.getName());
+        // 大类：Send / Sync（由 key 前缀推导）
+        boolean isSend = dataType.getKey() != null && dataType.getKey().startsWith("Send");
+        entity.setSyncType(isSend ? "Send" : "Sync");
+        entity.setSyncTypeKey(isSend ? "Send" : "Sync");
+        entity.setSyncTypeName(isSend ? "推送" : "同步");
+
+        entity.setClassMethod(classMethod);
+        entity.setUserId(UserContext.getUserId());
+        entity.setUserName(UserContext.getUserName());
+        entity.setSchId(UserContext.getSchId());
+        entity.setRequestIp(StringUtils.hasText(UserContext.getIp())
+                ? UserContext.getIp() : OtherUtil.getClientIp());
+        entity.setJsonData(jsonData);
+
+        Object result;
+        try {
+            result = pjp.proceed();
+        } catch (Throwable t) {
+            entity.setErrorMsg(truncate(t.getMessage(), MAX_ERROR_MSG));
+            syncLogService.saveAsync(entity);
+            throw t;
+        }
+        syncLogService.saveAsync(entity);
+        return result;
+    }
+
+    /**
+     * 将方法参数按"参数名->值"序列化为 JSON，并用 SensitiveDataUtil 脱敏 pwd/idCard/phone 等。
+     */
+    private String buildJsonData(ProceedingJoinPoint pjp) {
+        try {
+            MethodSignature ms = (MethodSignature) pjp.getSignature();
+            String[] names = ms.getParameterNames();
+            Object[] args = pjp.getArgs();
+            if (names == null || args == null) return "";
+            Map<String, Object> map = new LinkedHashMap<>();
+            for (int i = 0; i < args.length && i < names.length; i++) {
+                map.put(names[i], args[i]);
+            }
+            return SensitiveDataUtil.mask(JSON.toJSONString(map));
+        } catch (Exception e) {
+            return "";
+        }
+    }
+
+    private String truncate(String s, int max) {
+        return s != null && s.length() > max ? s.substring(0, max) : s;
+    }
+}
diff --git a/src/main/java/com/yunhai/bschclassmanage/entity/SyncLog.java b/src/main/java/com/yunhai/bschclassmanage/entity/SyncLog.java
new file mode 100644
index 0000000..062e3a8
--- /dev/null
+++ b/src/main/java/com/yunhai/bschclassmanage/entity/SyncLog.java
@@ -0,0 +1,80 @@
+package com.yunhai.bschclassmanage.entity;
+
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import org.hibernate.annotations.CreationTimestamp;
+
+import javax.persistence.*;
+import java.io.Serializable;
+import java.time.LocalDateTime;
+
+/**
+ * 用户同步调用日志实体。
+ * 专用于记录 SyncUserBaseService 对基础平台 OpenAPI 的同步/推送调用，
+ * 与 operation_log（业务日志）、sys_operation_log（审计日志）物理隔离。
+ * 索引由 sqlscript/sync_log.sql 负责创建，本实体不含 @Table(indexes)，
+ * 避免 ddl-auto=update 启动时重复建索引告警。
+ */
+@NoArgsConstructor
+@Data
+@Entity
+@Table(name = "sync_log")
+public class SyncLog implements Serializable {
+    private static final long serialVersionUID = 1L;
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    /** SyncDataType.key，如 Sync-AddGroup */
+    @Column(name = "sync_data_type_key", length = 64)
+    private String syncDataTypeKey;
+
+    /** SyncDataType.name，如 添加组 */
+    @Column(name = "sync_data_type_name", length = 64)
+    private String syncDataTypeName;
+
+    /** 大类：Sync / Send */
+    @Column(name = "sync_type", nullable = false, length = 16)
+    private String syncType;
+
+    /** 大类 key：Sync / Send */
+    @Column(name = "sync_type_key", nullable = false, length = 16)
+    private String syncTypeKey;
+
+    /** 大类名称：同步 / 推送 */
+    @Column(name = "sync_type_name", length = 32)
+    private String syncTypeName;
+
+    /** 类名.方法名 */
+    @Column(name = "class_method", nullable = false, length = 512)
+    private String classMethod;
+
+    /** 操作人ID（来自 UserContext） */
+    @Column(name = "user_id")
+    private Integer userId;
+
+    /** 操作人姓名（来自 UserContext） */
+    @Column(name = "user_name", length = 64)
+    private String userName;
+
+    /** 学校ID（多校隔离，来自 UserContext） */
+    @Column(name = "sch_id")
+    private Integer schId;
+
+    /** 客户端IP */
+    @Column(name = "request_ip", length = 64)
+    private String requestIp;
+
+    /** 请求入参（参数名->值，已脱敏），TEXT */
+    @Column(name = "json_data", columnDefinition = "TEXT")
+    private String jsonData;
+
+    /** 异常信息，成功为 NULL */
+    @Column(name = "error_msg", columnDefinition = "TEXT")
+    private String errorMsg;
+
+    @CreationTimestamp
+    @Column(name = "create_time", nullable = false, updatable = false, columnDefinition = "DATETIME(3)")
+    private LocalDateTime createTime;
+}
diff --git a/src/main/java/com/yunhai/bschclassmanage/service/ISyncLogService.java b/src/main/java/com/yunhai/bschclassmanage/service/ISyncLogService.java
new file mode 100644
index 0000000..ba4b0c0
--- /dev/null
+++ b/src/main/java/com/yunhai/bschclassmanage/service/ISyncLogService.java
@@ -0,0 +1,11 @@
+package com.yunhai.bschclassmanage.service;
+
+import com.yunhai.bschclassmanage.entity.SyncLog;
+
+public interface ISyncLogService {
+    /**
+     * 异步保存一条同步调用日志。
+     * 由 SyncLogAspect 在 finally 中调用，失败仅记日志、不抛异常、不阻塞主流程。
+     */
+    void saveAsync(SyncLog entity);
+}
diff --git a/src/main/java/com/yunhai/bschclassmanage/service/impl/SyncLogServiceImpl.java b/src/main/java/com/yunhai/bschclassmanage/service/impl/SyncLogServiceImpl.java
new file mode 100644
index 0000000..e9d6d60
--- /dev/null
+++ b/src/main/java/com/yunhai/bschclassmanage/service/impl/SyncLogServiceImpl.java
@@ -0,0 +1,27 @@
+package com.yunhai.bschclassmanage.service.impl;
+
+import com.yunhai.bschclassmanage.Repository.SyncLogRepository;
+import com.yunhai.bschclassmanage.entity.SyncLog;
+import com.yunhai.bschclassmanage.service.ISyncLogService;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.scheduling.annotation.Async;
+import org.springframework.stereotype.Service;
+
+@Slf4j
+@Service
+public class SyncLogServiceImpl implements ISyncLogService {
+
+    @Autowired
+    private SyncLogRepository repository;
+
+    @Async("logExecutor")
+    @Override
+    public void saveAsync(SyncLog entity) {
+        try {
+            repository.save(entity);
+        } catch (Exception e) {
+            log.error("同步日志异步落库失败, classMethod={}", entity.getClassMethod(), e);
+        }
+    }
+}