diff --git a/blade-service/blade-system/src/main/java/org/springblade/system/convert/UserConvert.java b/blade-service/blade-system/src/main/java/org/springblade/system/convert/UserConvert.java
index 6decb305..00b2e576 100644
--- a/blade-service/blade-system/src/main/java/org/springblade/system/convert/UserConvert.java
+++ b/blade-service/blade-system/src/main/java/org/springblade/system/convert/UserConvert.java
@@ -88,6 +88,8 @@ public interface UserConvert {
     default User person2user(OAPersonResponse person, String defaultPassword) {
         User user = baseConvert(person);
         user.setAccount(resolveAccount(person));
+        // OA 可能返回多号（如 133.../137...），只保留首个号码再入库加密
+        user.setPhone(normalizeMobile(user.getPhone()));
         // 密码
         user.setPassword(defaultPassword);
         // 性别
@@ -103,6 +105,23 @@ public interface UserConvert {
         return user;
     }
 
+    /**
+     * 规范化手机号：去空白，多号时取第一个
+     */
+    default String normalizeMobile(String mobile) {
+        if (StringUtils.isBlank(mobile)) {
+            return null;
+        }
+        String trimmed = mobile.trim();
+        String[] parts = trimmed.split("[/|,;；，\\s]+");
+        for (String part : parts) {
+            if (StringUtils.isNotBlank(part)) {
+                return part.trim();
+            }
+        }
+        return null;
+    }
+
     /**
      * 解析本系统登录账号：优先 OA loginid，其次工号，最后手机号
      *
diff --git a/doc/sql/bladex/bladex.mysql.all.create.sql b/doc/sql/bladex/bladex.mysql.all.create.sql
index 741094ac..67ea9959 100644
--- a/doc/sql/bladex/bladex.mysql.all.create.sql
+++ b/doc/sql/bladex/bladex.mysql.all.create.sql
@@ -1261,7 +1261,7 @@ CREATE TABLE `blade_user`  (
   `real_name` varchar(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT '真名',
   `avatar` varchar(500) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT '头像',
   `email` varchar(45) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT '邮箱',
-  `phone` varchar(45) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT '手机',
+  `phone` varchar(500) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT '手机',
   `birthday` datetime NULL DEFAULT NULL COMMENT '生日',
   `sex` int NULL DEFAULT NULL COMMENT '性别',
   `role_id` varchar(1000) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT '角色id',
diff --git a/doc/sql/transport/blade_user_phone_expand_20261014.sql b/doc/sql/transport/blade_user_phone_expand_20261014.sql
new file mode 100644
index 00000000..a0d376d0
--- /dev/null
+++ b/doc/sql/transport/blade_user_phone_expand_20261014.sql
@@ -0,0 +1,5 @@
+-- 用户手机号字段扩容：SM2 加密后 Hex 远超 varchar(45)，避免 IAM/OA 同步插入失败
+-- 部署前先执行本脚本，再发布后端
+
+ALTER TABLE `blade_user`
+  MODIFY COLUMN `phone` varchar(500) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT '手机';
diff --git a/doc/sql/transport/transport.sql b/doc/sql/transport/transport.sql
index db0b3b98..c2bc3826 100644
--- a/doc/sql/transport/transport.sql
+++ b/doc/sql/transport/transport.sql
@@ -5422,7 +5422,7 @@ CREATE TABLE `blade_user` (
   `real_name` varchar(10) DEFAULT NULL COMMENT '真名',
   `avatar` varchar(500) DEFAULT NULL COMMENT '头像',
   `email` varchar(45) DEFAULT NULL COMMENT '邮箱',
-  `phone` varchar(45) DEFAULT NULL COMMENT '手机',
+  `phone` varchar(500) DEFAULT NULL COMMENT '手机',
   `birthday` datetime DEFAULT NULL COMMENT '生日',
   `sex` int(11) DEFAULT NULL COMMENT '性别',
   `role_id` varchar(1000) DEFAULT NULL COMMENT '角色id',