diff --git a/health-emergency/health-emergency-biz/src/main/java/com/renkang/emergency/api/service/impl/EmergencyApiServiceImpl.java b/health-emergency/health-emergency-biz/src/main/java/com/renkang/emergency/api/service/impl/EmergencyApiServiceImpl.java
index a0a053d..9c071a9 100644
--- a/health-emergency/health-emergency-biz/src/main/java/com/renkang/emergency/api/service/impl/EmergencyApiServiceImpl.java
+++ b/health-emergency/health-emergency-biz/src/main/java/com/renkang/emergency/api/service/impl/EmergencyApiServiceImpl.java
@@ -36,6 +36,7 @@ import com.renkang.im.dto.DeleteGroupMemberDTO;
 import com.renkang.im.entity.ConSessionRequestDO;
 import com.renkang.im.entity.ImGroupMsgTextReqDO;
 import com.renkang.im.vo.AddGroupMemberVO;
+import com.renkang.im.vo.GetGroupMemberInfoVO;
 import com.renkang.im.vo.ImBaseResult;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.commons.collections4.CollectionUtils;
@@ -1284,17 +1285,45 @@ public class EmergencyApiServiceImpl implements EmergencyApiService {
             ExceptionAssertsUtil.fail("应急单不存在");
         }
         String orderId = order.getId();
+
+        // 0. 获取当前登录用户，过滤掉本人
+        LoginUser loginUser = GlobalUtils.getLoginUser();
+        String currentUserId = loginUser.getId();
+        List<String> candidateList = dto.getMemberList().stream()
+                .filter(userId -> !userId.equals(currentUserId))
+                .collect(Collectors.toList());
+        if (candidateList.isEmpty()) {
+            ExceptionAssertsUtil.fail("不能邀请自己入群");
+        }
+
+        // 1. 查询本地 order_operator 和腾讯IM实际群成员，取并集作为已在群中的用户
+        Set<String> alreadyInGroup = new HashSet<>();
+        // 1a. 本地已有记录
+        List<OrderOperator> existingOps = orderOperatorMapper.selectList(
+                new LambdaQueryWrapper<OrderOperator>()
+                        .eq(OrderOperator::getOrderId, orderId));
+        existingOps.forEach(op -> alreadyInGroup.add(op.getUserId()));
+        alreadyInGroup.add(order.getInitiatorUserId());
+        // 1b. 腾讯IM实际群成员
+        try {
+            Result<GetGroupMemberInfoVO> imResult = iMHelloApi.getGroupMemberInfo(groupId);
+            if (imResult != null && imResult.isSuccess() && imResult.getResult() != null) {
+                GetGroupMemberInfoVO vo = imResult.getResult();
+                if ("OK".equals(vo.getActionStatus()) && vo.getMemberList() != null) {
+                    vo.getMemberList().forEach(m -> alreadyInGroup.add(m.getMemberAccount()));
+                }
+            }
+        } catch (Exception e) {
+            log.warn("获取腾讯IM群成员失败，仅使用本地数据进行去重, groupId: {}", groupId, e);
+        }
+
         // memberType: 0=专家/专业人员(默认), 1=员工
         Integer memberType = dto.getMemberType();
         Integer operatorType = (memberType != null && memberType == 1) ? 2 : 1;
         Date now = new Date();
         List<String> newMemberList = new ArrayList<>();
-        dto.getMemberList().forEach(userId -> {
-            OrderOperator existing = orderOperatorMapper.selectOne(new LambdaQueryWrapper<OrderOperator>()
-                    .eq(OrderOperator::getOrderId, orderId)
-                    .eq(OrderOperator::getUserId, userId)
-            );
-            if (existing != null) {
+        candidateList.forEach(userId -> {
+            if (alreadyInGroup.contains(userId)) {
                 return;
             }
             OrderOperator orderOperator = new OrderOperator();
@@ -1307,7 +1336,7 @@ public class EmergencyApiServiceImpl implements EmergencyApiService {
             newMemberList.add(userId);
         });
         if (newMemberList.isEmpty()) {
-            ExceptionAssertsUtil.fail("所有成员已在群组中");
+            ExceptionAssertsUtil.fail("所选成员已在群聊中");
         }
         AddGroupMemberDTO addGroupMemberDTO = new AddGroupMemberDTO();
         addGroupMemberDTO.setGroupId(dto.getGroupId());