diff --git a/services/netconnmanager/include/dns_result_call_back.h b/services/netconnmanager/include/dns_result_call_back.h
index debfd65c540a1c7b619806e1d13e7d2ffcee08d4..15ae1044713f891c71cacf0bf271922ec6049721 100644
--- a/services/netconnmanager/include/dns_result_call_back.h
+++ b/services/netconnmanager/include/dns_result_call_back.h
@@ -39,7 +39,7 @@ public:
 private:
     void IterateDnsReportResults(const std::list<NetsysNative::NetDnsResultReport> netDnsResultReport);
     void RequestNetDetection(uint32_t &failvalue_, uint32_t netid);
-    bool CheckDnsSentByResult(uint32_t result);
+    bool CheckDnsSentByResult(int32_t result);
 
 private:
     SafeMap<uint32_t, NetDnsResult> netDnsResult_;
diff --git a/services/netconnmanager/src/dns_result_call_back.cpp b/services/netconnmanager/src/dns_result_call_back.cpp
index b2f5c293ae44cc21b0d98d8434a0bd04a2fa4ea5..c17fa22c4fb3620cf8d642d1c19adf891a6dd7e4 100644
--- a/services/netconnmanager/src/dns_result_call_back.cpp
+++ b/services/netconnmanager/src/dns_result_call_back.cpp
@@ -91,7 +91,7 @@ void NetDnsResultCallback::IterateDnsReportResults(
     for (auto &it : netDnsResultReport) {
         NETMGR_LOG_D("netId_: %{public}d, queryResult_: %{public}d, pid_ : %{public}d",
                      it.netid_, it.queryresult_, it.pid_);
-        if (!CheckDnsSentByResult(it.queryresult_)) {
+        if (!CheckDnsSentByResult(static_cast<int32_t>(it.queryresult_))) {
             continue;
         }
         NetDnsResult existResult;
@@ -123,7 +123,7 @@ void NetDnsResultCallback::IterateDnsReportResults(
     }
 }
 
-bool NetDnsResultCallback::CheckDnsSentByResult(uint32_t result)
+bool NetDnsResultCallback::CheckDnsSentByResult(int32_t result)
 {
     if (result == DNS_FAIL_REASON_PARAM_INVALID) {
         return false;