diff --git a/src/gausskernel/cbb/communication/libcomm_utils/libcomm_client_ssl.cpp b/src/gausskernel/cbb/communication/libcomm_utils/libcomm_client_ssl.cpp
index 3676939e8..085f3ef12 100644
--- a/src/gausskernel/cbb/communication/libcomm_utils/libcomm_client_ssl.cpp
+++ b/src/gausskernel/cbb/communication/libcomm_utils/libcomm_client_ssl.cpp
@@ -137,6 +137,16 @@ static int LibCommClientSSLDHVerifyCb(const SSL* s, const SSL_CTX* ctx,
     return 1;
 }
 
+/*
+function name: ssl_cipher_list2string
+description: This function converts the two-dimensional character array storing the key into a one-dimensional character array.
+arguments: The first argument represents the two-dimensional character array to be converted.
+				   The second argument indicates the number of one-dimensional arrays contained in this two-dimensional array.
+return value: Returns a pointer to the one-dimensional character array that has been successfully converted. If the conversion fails, NULL is returned.
+note: none
+date: 2022/8/12
+contact tel: 18720816902
+*/
 static char* ssl_cipher_list2string(const char* ciphers[], const int num) {
     int i;
     int catlen = 0;