diff --git a/backend-single/src/main/java/com/emotion/entity/AiCallLog.java b/backend-single/src/main/java/com/emotion/entity/AiCallLog.java
index dc54043..3d55de9 100644
--- a/backend-single/src/main/java/com/emotion/entity/AiCallLog.java
+++ b/backend-single/src/main/java/com/emotion/entity/AiCallLog.java
@@ -29,6 +29,9 @@ public class AiCallLog extends BaseEntity {
     @TableField("user_id")
     private String userId;
 
+    @TableField("user_name")
+    private String userName;
+
     @TableField("request_id")
     private String requestId;
 
diff --git a/backend-single/src/main/resources/db/migration/V20260525__add_user_name_to_ai_call_log.sql b/backend-single/src/main/resources/db/migration/V20260525__add_user_name_to_ai_call_log.sql
new file mode 100644
index 0000000..2de6617
--- /dev/null
+++ b/backend-single/src/main/resources/db/migration/V20260525__add_user_name_to_ai_call_log.sql
@@ -0,0 +1,2 @@
+-- 调用日志表新增 user_name 字段
+ALTER TABLE t_ai_call_log ADD COLUMN user_name VARCHAR(100) DEFAULT NULL COMMENT '用户昵称' AFTER user_id;