diff --git a/components/openssl/include/internal/ssl_types.h b/components/openssl/include/internal/ssl_types.h
index 761250eef..d001befdb 100644
--- a/components/openssl/include/internal/ssl_types.h
+++ b/components/openssl/include/internal/ssl_types.h
@@ -76,6 +76,9 @@ typedef struct cert_st CERT;
 struct x509_st;
 typedef struct x509_st X509;
 
+struct X509_VERIFY_PARAM_st;
+typedef struct X509_VERIFY_PARAM_st X509_VERIFY_PARAM;
+
 struct evp_pkey_st;
 typedef struct evp_pkey_st EVP_PKEY;
 
@@ -139,6 +142,12 @@ struct ssl_session_st {
     long time;
 };
 
+struct X509_VERIFY_PARAM_st {
+
+    int depth;
+
+};
+
 struct ssl_ctx_st
 {
     int version;
@@ -164,6 +173,8 @@ struct ssl_ctx_st
     int read_ahead;
 
     int read_buffer_len;
+
+    X509_VERIFY_PARAM param;
 };
 
 struct ssl_st
@@ -195,6 +206,8 @@ struct ssl_st
 
     long verify_result;
 
+    X509_VERIFY_PARAM param;
+
     int err;
 
     void (*info_callback) (const SSL *ssl, int type, int val);
diff --git a/components/openssl/library/ssl_lib.c b/components/openssl/library/ssl_lib.c
index ac41be627..442920f11 100644
--- a/components/openssl/library/ssl_lib.c
+++ b/components/openssl/library/ssl_lib.c
@@ -1745,3 +1745,61 @@ long SSL_get_verify_result(const SSL *ssl)
 
     return SSL_METHOD_CALL(get_verify_result, ssl);
 }
+
+/*
+ * SSL_CTX_get_verify_depth - get the SSL verifying depth of the SSL context
+ *
+ * @param ctx - SSL context point
+ *
+ * @return verifying depth
+ */
+int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
+{
+    SSL_ASSERT(ctx);
+
+    return ctx->param.depth;
+}
+
+/*
+ * SSL_CTX_set_verify_depth - set the SSL verify depth of the SSL context
+ *
+ * @param ctx   - SSL context point
+ * @param depth - verifying depth
+ *
+ * @return one
+ */
+void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
+{
+    SSL_ASSERT(ctx);
+
+    ctx->param.depth = depth;
+}
+
+/*
+ * SSL_get_verify_depth - get the SSL verifying depth of the SSL
+ *
+ * @param ctx - SSL point
+ *
+ * @return verifying depth
+ */
+int SSL_get_verify_depth(const SSL *ssl)
+{
+    SSL_ASSERT(ssl);
+
+    return ssl->param.depth;
+}
+
+/*
+ * SSL_set_verify_depth - set the SSL verify depth of the SSL
+ *
+ * @param ctx   - SSL point
+ * @param depth - verifying depth
+ *
+ * @return one
+ */
+void SSL_set_verify_depth(SSL *ssl, int depth)
+{
+    SSL_ASSERT(ssl);
+
+    ssl->param.depth = depth;
+}