diff --git a/network/netmanager/include/net_connection.h b/network/netmanager/include/net_connection.h
index 02b937057deb6bc65db3c670e003fba0be04435d..7a64821bca25756685e7ec0035e4dcf167509d3f 100644
--- a/network/netmanager/include/net_connection.h
+++ b/network/netmanager/include/net_connection.h
@@ -45,6 +45,91 @@
 extern "C" {
 #endif
 
+/**
+ * @brief Checks whether a default activated data network is available.
+ *
+ * @param hasDefaultNet Pointer to the result that specifies whether a default activated data network is available.
+ * @return 0 - Success. 201 - Missing permissions.
+ *         401 - Parameter error. 2100002 - Unable to connect to service.
+ *         2100003 - Internal error.
+ * @permission ohos.permission.GET_NETWORK_INFO
+ * @syscap SystemCapability.Communication.NetManager.Core
+ * @since 11
+ * @version 1.0
+ */
+int32_t OH_NetConn_HasDefaultNet(int32_t *hasDefaultNet);
+
+/**
+ * @brief Obtains the default activated data network.
+ *
+ * @param netHandle Pointer to the network handle that contains the network ID.
+ * @return 0 - Success. 201 - Missing permissions.
+ *         401 - Parameter error. 2100002 - Unable to connect to service.
+ *         2100003 - Internal error.
+ * @permission ohos.permission.GET_NETWORK_INFO
+ * @syscap SystemCapability.Communication.NetManager.Core
+ * @since 11
+ * @version 1.0
+ */
+int32_t OH_NetConn_GetDefaultNet(NetConn_NetHandle *netHandle);
+
+/**
+ * @brief Checks whether metering is enabled for the default data network.
+ *
+ * @param isMetered Pointer to the result that specifies whether metering is enabled.
+ * @return 0 - Success. 201 - Missing permissions.
+ *         401 - Parameter error. 2100002 - Unable to connect to service.
+ *         2100003 - Internal error.
+ * @permission ohos.permission.GET_NETWORK_INFO
+ * @syscap SystemCapability.Communication.NetManager.Core
+ * @since 11
+ * @version 1.0
+ */
+int32_t OH_NetConn_IsDefaultNetMetered(int32_t *isMetered);
+
+/**
+ * @brief Obtains the connection properties of a data network.
+ *
+ * @param netHandle Pointer to the network handle that contains the network ID.
+ * @param prop Pointer to the connection properties.
+ * @return 0 - Success. 201 - Missing permissions.
+ *         401 - Parameter error. 2100002 - Unable to connect to service.
+ *         2100003 - Internal error.
+ * @permission ohos.permission.GET_NETWORK_INFO
+ * @syscap SystemCapability.Communication.NetManager.Core
+ * @since 11
+ * @version 1.0
+ */
+int32_t OH_NetConn_GetConnectionProperties(NetConn_NetHandle *netHandle, NetConn_ConnectionProperties *prop);
+
+/**
+ * @brief Obtains the capabilities of a data network.
+ *
+ * @param netHandle Pointer to the network handle that contains the network ID.
+ * @param netCapacities Pointer to the network capabilities.
+ * @return 0 - Success. 201 - Missing permissions.
+ *         401 - Parameter error. 2100002 - Unable to connect to service.
+ *         2100003 - Internal error.
+ * @permission ohos.permission.GET_NETWORK_INFO
+ * @syscap SystemCapability.Communication.NetManager.Core
+ * @since 11
+ * @version 1.0
+ */
+int32_t OH_NetConn_GetNetCapabilities(NetConn_NetHandle *netHandle, NetConn_NetCapabilities *netCapacities);
+
+/**
+ * @brief Obtains the default http proxy.
+ *
+ * @param httpProxy Pointer to the HTTP proxy.
+ * @return 0 - Success. 201 - Missing permissions.
+ *         401 - Parameter error. 2100002 - Unable to connect to service.
+ *         2100003 - Internal error.
+ * @syscap SystemCapability.Communication.NetManager.Core
+ * @since 11
+ * @version 1.0
+ */
+int32_t OH_NetConn_GetDefaultHttpProxy(NetConn_HttpProxy *httpProxy);
+
 /**
  * @brief Get DNS result with netId.
  *
@@ -60,7 +145,7 @@ extern "C" {
  * @syscap SystemCapability.Communication.NetManager.Core
  * @since 11
  * @version 1.0
-*/
+ */
 int32_t OH_NetConn_GetAddrInfo(char *host, char *serv, struct addrinfo *hint, struct addrinfo **res, int32_t netId);
 
 /**
@@ -74,7 +159,7 @@ int32_t OH_NetConn_GetAddrInfo(char *host, char *serv, struct addrinfo *hint, st
  * @syscap SystemCapability.Communication.NetManager.Core
  * @since 11
  * @version 1.0
-*/
+ */
 int32_t OH_NetConn_FreeDnsResult(struct addrinfo *res);
 
 /**
@@ -89,7 +174,7 @@ int32_t OH_NetConn_FreeDnsResult(struct addrinfo *res);
  * @since 11
  * @version 1.0
  */
-int32_t OH_NetConn_GetAllNets(OH_NetConn_NetHandleList *netHandleList);
+int32_t OH_NetConn_GetAllNets(NetConn_NetHandleList *netHandleList);
 
 /**
  * @brief Registers a custom DNS resolver.
@@ -102,7 +187,7 @@ int32_t OH_NetConn_GetAllNets(OH_NetConn_NetHandleList *netHandleList);
  * @syscap SystemCapability.Communication.NetManager.Core
  * @since 11
  * @version 1.0
-*/
+ */
 int32_t OHOS_NetConn_RegisterDnsResolver(OH_NetConn_CustomDnsResolver resolver);
 
 /**
@@ -115,7 +200,7 @@ int32_t OHOS_NetConn_RegisterDnsResolver(OH_NetConn_CustomDnsResolver resolver);
  * @syscap SystemCapability.Communication.NetManager.Core
  * @since 11
  * @version 1.0
-*/
+ */
 int32_t OHOS_NetConn_UnregisterDnsResolver(void);
 
 #ifdef __cplusplus
@@ -123,4 +208,4 @@ int32_t OHOS_NetConn_UnregisterDnsResolver(void);
 #endif
 
 /** @} */
-#endif /* NATIVE_NET_CONN_API_H */
+#endif /* NATIVE_NET_CONN_API_H */
\ No newline at end of file
diff --git a/network/netmanager/include/net_connection_type.h b/network/netmanager/include/net_connection_type.h
index 17cfc24eb63eeb7b3c317edcb9e7a97ad3552379..2455ac8e26859e0beb876d92e6933c3fec16bc1c 100644
--- a/network/netmanager/include/net_connection_type.h
+++ b/network/netmanager/include/net_connection_type.h
@@ -1,41 +1,41 @@
 /*
-* Copyright (c) 2023 Huawei Device Co., Ltd.
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
+ * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 
 #ifndef NATIVE_NET_CONN_TYPE_H
 #define NATIVE_NET_CONN_TYPE_H
 
 /**
-* @addtogroup NetConnection
-* @{
-*
-* @brief Provides the data structures for the C APIs of the network connection module for network management.
-*
-* @since 11
-* @version 1.0
-*/
+ * @addtogroup NetConnection
+ * @{
+ *
+ * @brief Provides the data structures for the C APIs of the network connection module for network management.
+ *
+ * @since 11
+ * @version 1.0
+ */
 
 /**
-* @file net_connection_type.h
-* @brief Defines the data structures for the C APIs of the network connection module.
-*
-* @library libnet_connection.so
-* @syscap SystemCapability.Communication.NetManager.Core
-* @since 11
-* @version 1.0
-*
-*/
+ * @file net_connection_type.h
+ * @brief Defines the data structures for the C APIs of the network connection module.
+ *
+ * @library libnet_connection.so
+ * @syscap SystemCapability.Communication.NetManager.Core
+ * @since 11
+ * @version 1.0
+ *
+ */
 
 #include <stdint.h>
 
@@ -43,33 +43,178 @@
 extern "C" {
 #endif
 
-#define OH_NETCONN_MAX_NET_SIZE 32
+#define NETCONN_MAX_NET_SIZE 32
+#define NETCONN_MAX_BEARER_TYPE_SIZE 32
+#define NETCONN_MAX_CAP_SIZE 32
+#define NETCONN_MAX_ADDR_SIZE 32
+#define NETCONN_MAX_ROUTE_SIZE 64
+#define NETCONN_MAX_EXCLUSION_SIZE 256
+#define NETCONN_MAX_STR_LEN 256
 
 /**
-* @brief Defines the network handle.
-*
-* @since 11
-* @version 1.0
-*/
-typedef struct OH_NetConn_NetHandle {
+ * @brief Defines network capabilities.
+ *
+ * @since 11
+ * @version 1.0
+ */
+typedef enum NetConn_NetCap {
+    /** MMS */
+    NETCONN_NET_CAPABILITY_MMS = 0,
+    /** Not Metered */
+    NETCONN_NET_CAPABILITY_NOT_METERED = 11,
+    /** Internet */
+    NETCONN_NET_CAPABILITY_INTERNET = 12,
+    /** Not VPN */
+    NETCONN_NET_CAPABILITY_NOT_VPN = 15,
+    /** Validated */
+    NETCONN_NET_CAPABILITY_VALIDATED = 16,
+} NetConn_NetCap;
+
+/**
+ * @brief Defines network bearer types.
+ *
+ * @since 11
+ * @version 1.0
+ */
+typedef enum NetConn_NetBearerType {
+    /** Cellular network */
+    NETCONN_BEARER_CELLULAR = 0,
+    /** WIFI */
+    NETCONN_BEARER_WIFI = 1,
+    /** Ethernet */
+    NETCONN_BEARER_ETHERNET = 3,
+} NetConn_NetBearerType;
+
+/**
+ * @brief Defines the network handle.
+ *
+ * @since 11
+ * @version 1.0
+ */
+typedef struct NetConn_NetHandle {
     /** Network ID */
     int32_t netId;
-} OH_NetConn_NetHandle;
+} NetConn_NetHandle;
+
+/**
+ * @brief Defines all network capabilities.
+ *
+ * @since 11
+ * @version 1.0
+ */
+typedef struct NetConn_NetCapabilities {
+    /** Uplink bandwidth */
+    uint32_t linkUpBandwidthKbps;
+    /** Downlink bandwidth */
+    uint32_t linkDownBandwidthKbps;
+    /** Network capability list */
+    NetConn_NetCap netCaps[NETCONN_MAX_CAP_SIZE];
+    /** Actual size of the network capability list */
+    int32_t netCapsSize;
+    /** Bearer type list */
+    NetConn_NetBearerType bearerTypes[NETCONN_MAX_BEARER_TYPE_SIZE];
+    /** Actual size of the bearer type list */
+    int32_t bearerTypesSize;
+} NetConn_NetCapabilities;
 
 /**
-* @brief Defines the network handle list.
-*
-* @since 11
-* @version 1.0
-*/
-typedef struct OH_NetConn_NetHandleList {
+ * @brief Defines the network address.
+ *
+ * @since 11
+ * @version 1.0
+ */
+typedef struct NetConn_NetAddr {
+    /** Network address family */
+    uint8_t family;
+    /** Prefix length */
+    uint8_t prefixlen;
+    /** Port number */
+    uint8_t port;
+    /** Address */
+    char address[NETCONN_MAX_STR_LEN];
+} NetConn_NetAddr;
+
+/**
+ * @brief Defines the route configuration information.
+ *
+ * @since 11
+ * @version 1.0
+ */
+typedef struct NetConn_Route {
+    /** Network interface */
+    char iface[NETCONN_MAX_STR_LEN];
+    /** Destination address */
+    NetConn_NetAddr destination;
+    /** Gateway address */
+    NetConn_NetAddr gateway;
+    /** Gateway exists or not */
+    int32_t hasGateway;
+    /** Default route or not */
+    int32_t isDefaultRoute;
+} NetConn_Route;
+
+/**
+ * @brief Defines the proxy configuration information.
+ *
+ * @since 11
+ * @version 1.0
+ */
+typedef struct NetConn_HttpProxy {
+    /** Host name */
+    char host[NETCONN_MAX_STR_LEN];
+    /** Exclusion list of proxy servers */
+    char exclusionList[NETCONN_MAX_EXCLUSION_SIZE][NETCONN_MAX_STR_LEN];
+    /** Actual size of the exclusion list */
+    int32_t exclusionListSize;
+    /** Port number */
+    uint16_t port;
+} NetConn_HttpProxy;
+
+/**
+ * @brief Defines the network connection properties.
+ *
+ * @since 11
+ * @version 1.0
+ */
+typedef struct NetConn_ConnectionProperties {
+    /** Network interface name */
+    char ifaceName[NETCONN_MAX_STR_LEN];
+    /** Domain name of the network connection */
+    char domain[NETCONN_MAX_STR_LEN];
+    /** TCP buffer size */
+    char tcpBufferSizes[NETCONN_MAX_STR_LEN];
+    /** MTU */
+    uint16_t mtu;
+    /** Address list */
+    NetConn_NetAddr netAddrList[NETCONN_MAX_ADDR_SIZE];
+    /** Actual size of the address list */
+    int32_t netAddrListSize;
+    /** DNS list */
+    NetConn_NetAddr dnsList[NETCONN_MAX_ADDR_SIZE];
+    /** Actual size of the DNS list */
+    int32_t dnsListSize;
+    /** Route list */
+    NetConn_Route routeList[NETCONN_MAX_ROUTE_SIZE];
+    /** Actual size of the route list */
+    int32_t routeListSize;
+    /** HTTP proxy information */
+    NetConn_HttpProxy httpProxy;
+} NetConn_ConnectionProperties;
+
+/**
+ * @brief Defines the network handle list.
+ *
+ * @since 11
+ * @version 1.0
+ */
+typedef struct NetConn_NetHandleList {
     /** Network handle list */
-    OH_NetConn_NetHandle netHandles[OH_NETCONN_MAX_NET_SIZE];
+    NetConn_NetHandle netHandles[NETCONN_MAX_NET_SIZE];
     /** Actual size of the network handle list */
     int32_t netHandleListSize;
-} OH_NetConn_NetHandleList;
+} NetConn_NetHandleList;
 
-/*
+/**
  * @brief Pointer to the custom DNS resolver.
  *
  * @param host The host name to query.
@@ -82,7 +227,6 @@ typedef struct OH_NetConn_NetHandleList {
  */
 typedef int (*OH_NetConn_CustomDnsResolver)(const char *host, const char *serv,
     const struct addrinfo *hint, struct addrinfo **res);
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/network/netmanager/libnet_connection.ndk.json b/network/netmanager/libnet_connection.ndk.json
index fdac6cc66ef22f54b6acd69066b87c89a410ff5e..284e7ad50a64bfd4aef2a7af5714dbde1d3fa673 100644
--- a/network/netmanager/libnet_connection.ndk.json
+++ b/network/netmanager/libnet_connection.ndk.json
@@ -11,6 +11,30 @@
         "first_introduced": "11",
         "name": "OH_NetConn_GetAllNets"
     },
+    {
+        "first_introduced": "11",
+        "name": "OH_NetConn_HasDefaultNet"
+    },
+    {
+        "first_introduced": "11",
+        "name": "OH_NetConn_IsDefaultNetMetered"
+    },
+    {
+        "first_introduced": "11",
+        "name": "OH_NetConn_GetDefaultNet"
+    },
+    {
+        "first_introduced": "11",
+        "name": "OH_NetConn_GetConnectionProperties"
+    },
+    {
+        "first_introduced": "11",
+        "name": "OH_NetConn_GetNetCapabilities"
+    },
+    {
+        "first_introduced": "11",
+        "name": "OH_NetConn_GetDefaultHttpProxy"
+    },
     {
         "first_introduced": "11",
         "name": "OHOS_NetConn_RegisterDnsResolver"