diff --git a/evcs-modules/evcs-core/src/main/java/com/xhpc/evcs/api/QueryStartChargeController.java b/evcs-modules/evcs-core/src/main/java/com/xhpc/evcs/api/QueryStartChargeController.java
index 1334f72d..704d5bb7 100644
--- a/evcs-modules/evcs-core/src/main/java/com/xhpc/evcs/api/QueryStartChargeController.java
+++ b/evcs-modules/evcs-core/src/main/java/com/xhpc/evcs/api/QueryStartChargeController.java
@@ -49,67 +49,72 @@ public class QueryStartChargeController {
         if (startChargeRequest == null) {
             resp.setMsg("Request or token params validation failed");
         } else {
-            StartChargeResponse startChargeResponse = new StartChargeResponse();
-            startChargeResponse.setFailReason(0);
-            startChargeResponse.setSuccStat(1);
-            startChargeResponse.setStartChargeSeqStat(4);
             String startChargeSeq = startChargeRequest.getStartChargeSeq();
-            String connectorId = startChargeRequest.getConnectorId();
-            Map<String, Object> cacheGun = REDIS.getCacheMap("gun:".concat(connectorId));
-            String terminalStatus = (String) cacheGun.get("vehicleGunStatus");
-            String status = (String) cacheGun.get("status");
-            EtOrderMapping etOrderMapping = new EtOrderMapping();
-            Date now = DateUtils.getNowDate();
-            etOrderMapping.setCreateTime(now);
-            etOrderMapping.setEvcsOrderNo(startChargeSeq);
-            if (!"空闲".equals(status)) {
-                resp.setMsg("终端状态异常:[".concat(status == null ? "未注册" : status).concat("]"));
-                emptyHorder(startChargeSeq, connectorId, etOrderMapping);
-            } else if ("否".equals(terminalStatus)) {
-                resp.setMsg("未插枪");
-                emptyHorder(startChargeSeq, connectorId, etOrderMapping);
+            EtOrderMapping orderMapping = etOrderMappingRepo.findByEvcsOrderNo(startChargeSeq).orElse(null);
+            if (orderMapping != null) {
+                resp.setMsg("Duplicated StartChargeSeq");
             } else {
-                String plateNum = startChargeRequest.getPlateNum();
-                plateNum = plateNum == null ? startChargeRequest.getPlateNum2() : plateNum;
-                R res = pileOrderService.pileStartUpBy3rd(startChargeSeq, startChargeRequest.getDriverId(),
-                        startChargeRequest.getChargingAmt(), plateNum, -1, connectorId);
-                startChargeResponse.setStartChargeSeq(startChargeSeq);
-                startChargeResponse.setConnectorID(connectorId);
-                resp.setMsg(res.getMsg());
-                if (res.getCode() != 200) {
-                    if (res.getCode() != 500) {
-                        startChargeResponse.setFailReason(res.getCode());
-                    } else {
-                        startChargeResponse.setFailReason(3);
-                    }
-                    startChargeResponse.setSuccStat(1);
-                    startChargeResponse.setStartChargeSeqStat(4);
+                StartChargeResponse startChargeResponse = new StartChargeResponse();
+                startChargeResponse.setFailReason(0);
+                startChargeResponse.setSuccStat(1);
+                startChargeResponse.setStartChargeSeqStat(4);
+                String connectorId = startChargeRequest.getConnectorId();
+                Map<String, Object> cacheGun = REDIS.getCacheMap("gun:".concat(connectorId));
+                String terminalStatus = (String) cacheGun.get("vehicleGunStatus");
+                String status = (String) cacheGun.get("status");
+                EtOrderMapping etOrderMapping = new EtOrderMapping();
+                Date now = DateUtils.getNowDate();
+                etOrderMapping.setCreateTime(now);
+                etOrderMapping.setEvcsOrderNo(startChargeSeq);
+                if (!"空闲".equals(status)) {
+                    resp.setMsg("终端状态异常:[".concat(status == null ? "未注册" : status).concat("]"));
+                    emptyHorder(startChargeSeq, connectorId, etOrderMapping);
+                } else if ("否".equals(terminalStatus)) {
+                    resp.setMsg("未插枪");
                     emptyHorder(startChargeSeq, connectorId, etOrderMapping);
                 } else {
-                    Map<String, Object> etOrderData = (Map<String, Object>) res.getData();
-                    if (etOrderData != null) {
-                        resp.setRet(EvcsConst.RET_SUCC);
-                        startChargeResponse.setStartChargeSeqStat(1);
-                        startChargeResponse.setSuccStat(0);
-                        startChargeResponse.setFailReason(0);
-                        Map<String, Object> pushOrder = new HashMap<>();
-                        pushOrder.put("startChargeSeqStat", 1);
-                        pushOrder.put("internetSerialNumber", startChargeRequest.getStartChargeSeq());
-                        pushOrder.put("connectorID", connectorId);
-                        pushOrder.put("startChargeNotificationStat", 0);
-                        pushOrder.put("chargeOrderInfoNotificationStat", 0);
-                        pushOrder.put("operatorId3rdpty", startChargeSeq.substring(0, 9));
-                        pushOrder.put("startTime", etOrderData.get("startTime"));
-                        String orderNo = (String) etOrderData.get("orderNo");
-                        etOrderMapping.setXhOrderNo(orderNo);
-                        REDIS.setCacheMap("pushOrder:".concat(orderNo), pushOrder);
-                    } else {
+                    String plateNum = startChargeRequest.getPlateNum();
+                    plateNum = plateNum == null ? startChargeRequest.getPlateNum2() : plateNum;
+                    R res = pileOrderService.pileStartUpBy3rd(startChargeSeq, startChargeRequest.getDriverId(),
+                            startChargeRequest.getChargingAmt(), plateNum, -1, connectorId);
+                    startChargeResponse.setStartChargeSeq(startChargeSeq);
+                    startChargeResponse.setConnectorID(connectorId);
+                    resp.setMsg(res.getMsg());
+                    if (res.getCode() != 200) {
+                        if (res.getCode() != 500) {
+                            startChargeResponse.setFailReason(res.getCode());
+                        } else {
+                            startChargeResponse.setFailReason(3);
+                        }
+                        startChargeResponse.setSuccStat(1);
+                        startChargeResponse.setStartChargeSeqStat(4);
                         emptyHorder(startChargeSeq, connectorId, etOrderMapping);
+                    } else {
+                        Map<String, Object> etOrderData = (Map<String, Object>) res.getData();
+                        if (etOrderData != null) {
+                            resp.setRet(EvcsConst.RET_SUCC);
+                            startChargeResponse.setStartChargeSeqStat(1);
+                            startChargeResponse.setSuccStat(0);
+                            startChargeResponse.setFailReason(0);
+                            Map<String, Object> pushOrder = new HashMap<>();
+                            pushOrder.put("startChargeSeqStat", 1);
+                            pushOrder.put("internetSerialNumber", startChargeRequest.getStartChargeSeq());
+                            pushOrder.put("connectorID", connectorId);
+                            pushOrder.put("startChargeNotificationStat", 0);
+                            pushOrder.put("chargeOrderInfoNotificationStat", 0);
+                            pushOrder.put("operatorId3rdpty", startChargeSeq.substring(0, 9));
+                            pushOrder.put("startTime", etOrderData.get("startTime"));
+                            String orderNo = (String) etOrderData.get("orderNo");
+                            etOrderMapping.setXhOrderNo(orderNo);
+                            REDIS.setCacheMap("pushOrder:".concat(orderNo), pushOrder);
+                        } else {
+                            emptyHorder(startChargeSeq, connectorId, etOrderMapping);
+                        }
                     }
                 }
+                etOrderMappingRepo.save(etOrderMapping);
+                resp.setData(JSONUtil.toJSONString(startChargeResponse));
             }
-            etOrderMappingRepo.save(etOrderMapping);
-            resp.setData(JSONUtil.toJSONString(startChargeResponse));
         }
         return resp;
     }