diff --git a/services/include/apn_manager/apn_item.h b/services/include/apn_manager/apn_item.h
index 522d5f3b60c5e83b4fe9e56847a2a93923974d12..4b0bc1e63e47c9715a9aeca1fbb5cfe9cedb33b1 100644
--- a/services/include/apn_manager/apn_item.h
+++ b/services/include/apn_manager/apn_item.h
@@ -41,16 +41,16 @@ public:
 public:
     constexpr static int ALL_APN_ITEM_CHAR_LENGTH = 256;
     struct attribute {
-        char types_[ALL_APN_ITEM_CHAR_LENGTH];
-        char numeric_[ALL_APN_ITEM_CHAR_LENGTH];
-        int32_t profileId_;
-        char protocol_[ALL_APN_ITEM_CHAR_LENGTH];
-        char roamingProtocol_[ALL_APN_ITEM_CHAR_LENGTH];
-        int32_t authType_;
-        char apn_[ALL_APN_ITEM_CHAR_LENGTH];
-        char apnName_[ALL_APN_ITEM_CHAR_LENGTH];
-        char user_[ALL_APN_ITEM_CHAR_LENGTH];
-        char password_[ALL_APN_ITEM_CHAR_LENGTH];
+        char types_[ALL_APN_ITEM_CHAR_LENGTH] = { 0 };
+        char numeric_[ALL_APN_ITEM_CHAR_LENGTH] = { 0 };
+        int32_t profileId_ = 0;
+        char protocol_[ALL_APN_ITEM_CHAR_LENGTH] = { 0 };
+        char roamingProtocol_[ALL_APN_ITEM_CHAR_LENGTH] = { 0 };
+        int32_t authType_ = 0;
+        char apn_[ALL_APN_ITEM_CHAR_LENGTH] = { 0 };
+        char apnName_[ALL_APN_ITEM_CHAR_LENGTH] = { 0 };
+        char user_[ALL_APN_ITEM_CHAR_LENGTH] = { 0 };
+        char password_[ALL_APN_ITEM_CHAR_LENGTH] = { 0 };
     } attr_;
 
 private:
diff --git a/services/include/common/cellular_data_constant.h b/services/include/common/cellular_data_constant.h
index 4ba064331283b4e06457544d5fb5cb06f3c2cea2..504eb892b1ea3dc37930146ea63fe7d055900153 100644
--- a/services/include/common/cellular_data_constant.h
+++ b/services/include/common/cellular_data_constant.h
@@ -41,27 +41,27 @@ enum class RecoveryState : int32_t {
 };
 
 struct AddressInfo {
-    std::string ip;
-    std::string netMask;
-    uint8_t type;
-    uint8_t prefixLen;
+    std::string ip = "";
+    std::string netMask = "";
+    uint8_t type = 0;
+    uint8_t prefixLen = 0;
 };
 
 struct RouteInfo {
-    std::string ip;
-    uint8_t type;
-    std::string destination;
+    std::string ip = "";
+    uint8_t type = 0;
+    std::string destination = "";
 };
 
 struct NetSupplier {
-    uint32_t supplierId;
-    uint64_t capability;
-    int32_t slotId;
+    uint32_t supplierId = 0;
+    uint64_t capability = 0;
+    int32_t slotId = 0;
 };
 
 struct NetRequest {
-    uint64_t capability;
-    std::string ident;
+    uint64_t capability = 0;
+    std::string ident = "";
 };
 
 static const uint32_t DEFAULT_BANDWIDTH = 14;