diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2116669b9..9bf4f55e1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -83,7 +83,6 @@ set(tools
 	tools/sm3.c
 	tools/sm3hmac.c
 	tools/sm2keygen.c
-	tools/sm2keyparse.c
 	tools/sm2sign.c
 	tools/sm2verify.c
 	tools/sm2encrypt.c
diff --git a/tools/gmssl.c b/tools/gmssl.c
index 5d96dde4d..ef2bd6d23 100644
--- a/tools/gmssl.c
+++ b/tools/gmssl.c
@@ -28,7 +28,6 @@ extern int reqgen_main(int argc, char **argv);
 extern int reqparse_main(int argc, char **argv);
 extern int reqsign_main(int argc, char **argv);
 extern int sm2keygen_main(int argc, char **argv);
-extern int sm2keyparse_main(int argc,char **argv);
 extern int sm2sign_main(int argc, char **argv);
 extern int sm2verify_main(int argc, char **argv);
 extern int sm2encrypt_main(int argc, char **argv);
@@ -67,7 +66,6 @@ static const char *options =
 	"  version         Print version\n"
 	"  rand            Generate random bytes\n"
 	"  sm2keygen       Generate SM2 keypair\n"
-	"  sm2keyparse     Parse SM2 key to hex plaintext\n"
 	"  sm2sign         Generate SM2 signature\n"
 	"  sm2verify       Verify SM2 signature\n"
 	"  sm2encrypt      Encrypt with SM2 public key\n"
@@ -159,8 +157,6 @@ int main(int argc, char **argv)
 			return pbkdf2_main(argc, argv);
 		} else if (!strcmp(*argv, "sm2keygen")) {
 			return sm2keygen_main(argc, argv);
-		} else if (!strcmp(*argv, "sm2keyparse")) {
-			return sm2keyparse_main(argc, argv);
 		} else if (!strcmp(*argv, "sm2sign")) {
 			return sm2sign_main(argc, argv);
 		} else if (!strcmp(*argv, "sm2verify")) {
diff --git a/tools/sm2keyparse.c b/tools/sm2keyparse.c
deleted file mode 100644
index 55afb98e2..000000000
--- a/tools/sm2keyparse.c
+++ /dev/null
@@ -1,135 +0,0 @@
-/*
- *  Copyright 2014-2022 The GmSSL Project. All Rights Reserved.
- *
- *  Licensed under the Apache License, Version 2.0 (the License); you may
- *  not use this file except in compliance with the License.
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- */
-
-
-#include <stdio.h>
-#include <errno.h>
-#include <string.h>
-#include <stdlib.h>
-#include <gmssl/mem.h>
-#include <gmssl/sm2.h>
-
-
-static const char *usage = "-in private.pem -pass pass / -pubin public.pem";
-
-static const char *options =
-"Options\n"
-"    -pass pass                  Password to encrypt the private key\n"
-"    -in pem                     Input private key in PEM format\n"
-"    -pubin pem                  Input public key in PEM format\n"
-"\n";
-
-
-int sm2keyparse_main(int argc, char **argv)
-{
-	int ret = 1;
-	char *prog = argv[0];
-	char *pass = NULL;
-	char *pubinfile = NULL;
-    char *infile = NULL;
-	FILE *pubinfp = NULL;
-    FILE *infp = NULL;
-	SM2_KEY key;
-
-	argc--;
-	argv++;
-
-	if (argc < 1) {
-		fprintf(stderr, "usage: %s %s\n", prog, options);
-		return 1;
-	}
-
-	while (argc > 0) {
-		if (!strcmp(*argv, "-help")) {
-			printf("usage: %s %s\n", prog, usage);
-			printf("%s\n", options);
-			ret = 0;
-			goto end;
-		} else if(!strcmp(*argv,"-pubin")){
-            if (--argc<1) goto bad;
-            pubinfile=(*++argv);
-            if (!(pubinfp = fopen(pubinfile, "rb"))) {
-				fprintf(stderr, "%s: open '%s' failure : %s\n", prog, pubinfile, strerror(errno));
-				goto end;
-			}
-            goto pubkey;
-        } else if(!strcmp(*argv, "-in")){
-            if (--argc<1) goto bad;
-            infile = *(++argv);
-            if (!(infp = fopen(infile, "rb"))) {
-				fprintf(stderr, "%s: open '%s' failure : %s\n", prog, infile, strerror(errno));
-				goto end;
-			}
-        } else if (!strcmp(*argv, "-pass")) {
-			if (--argc < 1) goto bad;
-			pass = *(++argv);
-		} else {
-			fprintf(stderr, "%s: illegal option '%s'\n", prog, *argv);
-			goto end;
-bad:
-			fprintf(stderr, "%s: `%s` option value missing\n", prog, *argv);
-			goto end;
-		}
-
-		argc--;
-		argv++;
-	}
-
-	if (!pass) {
-		fprintf(stderr, "%s: `-pass` option required\n", prog);
-		goto end;
-	}
-
-	if (sm2_private_key_info_decrypt_from_pem(&key, pass, infp) != 1) {
-		fprintf(stderr, "%s: private key decryption failure\n", prog);
-		goto end;
-	} else {
-        printf("\n");
-        for(int i=0;i<4;i++){
-            for(int j=0;j<8;j++){
-                printf("%02x ",key.private_key[i*8+j]);
-            }
-            printf("\n");
-        }
-        printf("\n");
-    }
-
-    if(pubinfile){
-pubkey:
-        if (sm2_public_key_info_from_pem(&key, pubinfp) != 1) {
-                fprintf(stderr, "%s: parse public key failed\n", prog);
-                goto end;
-        } else {
-            printf("\nx:\n");
-            for(int i=0;i<4;i++){
-                for(int j=0;j<8;j++){
-                    printf("%02x ",key.public_key.x[i*8+j]);
-                }
-                printf("\n");
-            }
-            printf("\n");
-
-            printf("y:\n");
-            for(int i=0;i<4;i++){
-                for(int j=0;j<8;j++){
-                    printf("%02x ",key.public_key.y[i*8+j]);
-                }
-                printf("\n");
-            }
-            printf("\n");
-        }
-    }
-
-end:
-	gmssl_secure_clear(&key, sizeof(key));
-	if (infile && infp) fclose(infp);
-	if (pubinfile && pubinfp) fclose(pubinfp);
-	return ret;
-}
-