diff --git a/web-infrastructure/src/main/resources/mapper/TrainingUserMapper.xml b/web-infrastructure/src/main/resources/mapper/TrainingUserMapper.xml
index ce07e60..68a994f 100644
--- a/web-infrastructure/src/main/resources/mapper/TrainingUserMapper.xml
+++ b/web-infrastructure/src/main/resources/mapper/TrainingUserMapper.xml
@@ -17,15 +17,29 @@
 
     <select id="listAllByPhones" resultType="com.zcloud.edu.persistence.dataobject.TrainingUserDO">
         select
-            phone,
-            start_time,
-            end_time,
-            case when start_time &lt; now() and end_time > now() then 1 else 0 end stateFlag
-        from training_user
+            tu.phone,
+            tu.start_time,
+            tu.end_time,
+            case when tu.start_time &lt; now() and tu.end_time > now() then 1 else 0 end stateFlag
+        from training_user tu
+        inner join (
+            select phone, max(id) id
+            from training_user
+            <where>
+                delete_enum = 'false'
+                <if test="params.phones != null">
+                    and phone in
+                    <foreach item="phone" collection="params.phones" open="(" separator="," close=")">
+                        #{phone}
+                    </foreach>
+                </if>
+            </where>
+            group by phone
+        ) latest on latest.id = tu.id
         <where>
-            delete_enum = 'false'
+            tu.delete_enum = 'false'
             <if test="params.phones != null">
-                and phone in
+                and tu.phone in
                 <foreach item="phone" collection="params.phones" open="(" separator="," close=")">
                     #{phone}
                 </foreach>