diff --git a/components/net/at/at_socket/at_socket.c b/components/net/at/at_socket/at_socket.c
index 69112204fa..6fd2e765d4 100644
--- a/components/net/at/at_socket/at_socket.c
+++ b/components/net/at/at_socket/at_socket.c
@@ -23,6 +23,8 @@
 #define LOG_TAG              "at.skt"
 #include <at_log.h>
 
+#ifdef AT_USING_SOCKET
+
 #define HTONS_PORT(x) ((((x) & 0x00ffUL) << 8) | (((x) & 0xff00UL) >> 8))
 #define NIPQUAD(addr) \
         ((unsigned char *)&addr)[0], \
@@ -1175,3 +1177,5 @@ void at_socket_device_register(const struct at_device_ops *ops)
     RT_ASSERT(ops->at_set_event_cb);
     at_dev_ops = (struct at_device_ops *) ops;
 }
+
+#endif /* AT_USING_SOCKET */
diff --git a/components/net/sal_socket/impl/af_inet_at.c b/components/net/sal_socket/impl/af_inet_at.c
index fe7ad6cd13..c064283a61 100644
--- a/components/net/sal_socket/impl/af_inet_at.c
+++ b/components/net/sal_socket/impl/af_inet_at.c
@@ -20,6 +20,8 @@
 #include <dfs_poll.h>
 #endif
 
+#ifdef SAL_USING_AT
+
 #ifdef SAL_USING_POSIX
 static int at_poll(struct dfs_fd *file, struct rt_pollreq *req)
 {
@@ -111,3 +113,5 @@ int at_inet_init(void)
     return 0;
 }
 INIT_COMPONENT_EXPORT(at_inet_init);
+
+#endif /* SAL_USING_AT */
diff --git a/components/net/sal_socket/impl/af_inet_lwip.c b/components/net/sal_socket/impl/af_inet_lwip.c
index e20e16ffaf..41ea9ac968 100644
--- a/components/net/sal_socket/impl/af_inet_lwip.c
+++ b/components/net/sal_socket/impl/af_inet_lwip.c
@@ -30,6 +30,8 @@
 #endif
 #endif
 
+#ifdef SAL_USING_LWIP
+
 #ifdef SAL_USING_POSIX
 /*
  * Re-define lwip socket
@@ -293,3 +295,5 @@ int lwip_inet_init(void)
     return 0;
 }
 INIT_COMPONENT_EXPORT(lwip_inet_init);
+
+#endif /* SAL_USING_LWIP */