diff --git a/components/lwip/Kconfig b/components/lwip/Kconfig
index d6f2aa13f..b78790a1d 100644
--- a/components/lwip/Kconfig
+++ b/components/lwip/Kconfig
@@ -68,11 +68,14 @@ menu "LWIP"
         default n
         help
             Enabling this option allows SO_LINGER processing.
-            When close socket, the TCP connection will be immediately disconnected.
-            The unsent data in the send buffer will be discarded and an RST message
-            will be sent to the other party. It is worth noting that because of this way,
-            the abnormal handshake in 4 ends the TCP connection, the TCP connection will
-            not enter the 'TIME_WAIT' state.
+            l_onoff = 1,l_linger can set the timeout.
+
+            If l_linger=0, When a connection is closed, TCP will terminate the connection.
+            This means that TCP will discard any data packets stored in the socket send buffer
+            and send an RST to the peer.
+
+            If l_linger!=0,Then closesocket() calls to block the process until
+            the remaining data packets has been sent or timed out.
 
     config LWIP_SO_REUSE
         bool "Enable SO_REUSEADDR option"