diff --git a/src/tabs.c b/src/tabs.c
index 3fd5b3fd100ee2b4457ea68ad63625317d692aae..2587640b733401a9a5b9bbb9ba52526b41c84a3b 100644
--- a/src/tabs.c
+++ b/src/tabs.c
@@ -63,12 +63,33 @@ static int internal_add_node_by_args(int max[], node *head, int param_count, va_
     int length = 0;
     const char *current_arg_ptr = NULL;
 
+    va_list temp_args;
+    va_copy(temp_args, args);
+
     // 拿到第一个数据
-    current_arg_ptr = va_arg(args, const char *);
+    current_arg_ptr = va_arg(temp_args, const char *);
     counter = 1;
+
     while(counter <= param_count) {
+        if(current_arg_ptr == NULL) {
+            va_end(temp_args);
+            return COMMON_TABS_BAD_INPUT;
+        }
+        current_arg_ptr = va_arg(temp_args, const char *);
+        counter++;
+    }
+    va_end(temp_args);
+
+    // 拿到第一个数据
+    current_arg_ptr = va_arg(args, const char *);
+    counter =1;
+
+    while(counter <= param_count) {
+        if(current_arg_ptr == NULL) {
+            return COMMON_TABS_BAD_INPUT;
+        }
         // 添加节点，尾插法
-        length = strlen(current_arg_ptr);
+        length = strlen(current_arg_ptr) + 1;
         node *node_ptr = (node *)malloc(sizeof(node));
         node_ptr->value = (char *)malloc(sizeof(char) * length);
         strcpy(node_ptr->value, current_arg_ptr);
@@ -267,6 +288,14 @@ int common_tabs_free(tab_handler ** handler) {
     5. 根节点置为NULL
     ==================*/
 
+    if(handler == NULL) {
+        return COMMON_TABS_BAD_INPUT;
+    }
+
+    if(*handler == NULL) {
+        return COMMON_TABS_OK;
+    }
+
     tab_data *free_ptr_data = NULL;
     tab_data *free_ptr_temp = NULL;
 
@@ -325,6 +354,11 @@ int common_tabs_add_header(tab_handler *handler, int header_count, ...) {
     ret = internal_add_node_by_args(handler->column_max, &handler->handler_header, header_count, args);
     va_end(args);
 
+    if(ret != COMMON_TABS_OK) {
+        free(handler->column_max);
+        handler->column_max = NULL;
+    }
+
     return ret;
 }
 
@@ -391,6 +425,14 @@ int common_tabs_print_unicode_tabs(tab_handler *handler) {
     // step4 循环打印数据
     // step5 打印最后一行
 
+    if(handler == NULL) {
+        return COMMON_TABS_NEED_INIT;
+    }
+
+    if((*handler).handler_header.next == NULL) {
+        return COMMON_TABS_HEADERS_ARE_REQUIRED;
+    }
+
     // 设置本地化，以支持宽字符
     setlocale(LC_ALL, "");
 
@@ -425,6 +467,14 @@ int common_tabs_print_ascii_tabs(tab_handler *handler) {
     // step4 循环打印数据
     // step5 打印最后一行
 
+    if(handler == NULL) {
+        return COMMON_TABS_NEED_INIT;
+    }
+
+    if((*handler).handler_header.next == NULL) {
+        return COMMON_TABS_HEADERS_ARE_REQUIRED;
+    }
+
     // step1
     internal_print_special_line_ascii(handler);
 
diff --git a/test/check_interface.c b/test/check_interface.c
index 8b74de0d0c52afa95ba6f8e4ddf940be4324a5e3..29d8dfb163e049a03271e8aaa472fd1b1d78c141 100644
--- a/test/check_interface.c
+++ b/test/check_interface.c
@@ -9,6 +9,7 @@ int main()
     sr = srunner_create(check_base64());
     srunner_add_suite(sr, check_byte());
     srunner_add_suite(sr, check_big_number());
+    srunner_add_suite(sr, check_tabs());
 
     /* can debug with gdb */
     srunner_set_fork_status(sr, CK_NOFORK);
diff --git a/test/check_interface.h b/test/check_interface.h
index 6af75b0323570ca74cb208302994c374f4daec31..25a3d6c6472e53635eb3fd9f1f30bcb49463a5a2 100644
--- a/test/check_interface.h
+++ b/test/check_interface.h
@@ -8,5 +8,6 @@
 Suite *check_base64(void);
 Suite *check_byte(void);
 Suite *check_big_number(void);
+Suite *check_tabs(void);
 
 #endif
\ No newline at end of file
diff --git a/test/check_tabs.c b/test/check_tabs.c
new file mode 100644
index 0000000000000000000000000000000000000000..d77234af90e67ec17edec081a6783288fdbea748
--- /dev/null
+++ b/test/check_tabs.c
@@ -0,0 +1,72 @@
+#include <string.h>
+#include <stdint.h>
+
+#include "check.h"
+#include "tabs.h"
+
+START_TEST(test_ok) {
+    tab_handler *handler = NULL;
+    ck_assert_int_eq(common_tabs_init(&handler), COMMON_TABS_OK);
+    ck_assert_int_eq(common_tabs_add_header(handler, 3, "header1", "header2", "header3"), COMMON_TABS_OK);
+    ck_assert_int_eq(common_tabs_add_data(handler, 3, "data1", "data2", "data3"), COMMON_TABS_OK);
+    ck_assert_int_eq(common_tabs_print_ascii_tabs(handler), COMMON_TABS_OK);
+    ck_assert_int_eq(common_tabs_free(&handler), COMMON_TABS_OK);
+    ck_assert_ptr_eq(handler, NULL);
+}
+END_TEST
+
+START_TEST(test_input) {
+    // 正常使用的句柄
+    tab_handler *handler = NULL;
+    // 初始化但未添加表头的句柄
+    tab_handler *handler2 = NULL;
+
+    // 初始化检查
+    ck_assert_int_eq(common_tabs_init(&handler), COMMON_TABS_OK);
+    ck_assert_int_eq(common_tabs_init(&handler2), COMMON_TABS_OK);
+    ck_assert_int_eq(common_tabs_init(NULL), COMMON_TABS_BAD_INPUT);
+    ck_assert_int_eq(common_tabs_init(&handler), COMMON_TABS_ALREADY_INITED);
+
+    // 添加表头检查
+    ck_assert_int_eq(common_tabs_add_header(handler, 3, "header1", "header2", NULL), COMMON_TABS_BAD_INPUT);
+    ck_assert_int_eq(common_tabs_add_header(handler, -1, "header1", "header2", "header3"), COMMON_TABS_BAD_INPUT);
+    ck_assert_int_eq(common_tabs_add_header(handler, 3, "header1", "header2", "header3"), COMMON_TABS_OK);
+    ck_assert_int_eq(common_tabs_add_header(handler, 3, "header1", "header2", "header3"), COMMON_TABS_ALREADY_INITED);
+    ck_assert_int_eq(common_tabs_add_header(NULL, 3, "header1", "header2", "header3"), COMMON_TABS_BAD_INPUT);
+
+    // 添加数据检查
+    ck_assert_int_eq(common_tabs_add_data(handler, 3, "data1", "data2", "data3"), COMMON_TABS_OK);
+    ck_assert_int_eq(common_tabs_add_data(handler, 4, "data1", "data2", "data3"), COMMON_TABS_HEADER_AND_DATA_MISMATCH);
+    ck_assert_int_eq(common_tabs_add_data(handler, 3, "data1", "data2", NULL), COMMON_TABS_BAD_INPUT);
+    ck_assert_int_eq(common_tabs_add_data(handler, 0, "data1", "data2", "data3"), COMMON_TABS_BAD_INPUT);
+    ck_assert_int_eq(common_tabs_add_data(NULL, 3, "data1", "data2", "data3"), COMMON_TABS_BAD_INPUT);
+    ck_assert_int_eq(common_tabs_add_data(handler2, 3, "data1", "data2", "data3"), COMMON_TABS_HEADERS_ARE_REQUIRED);
+
+    ck_assert_int_eq(common_tabs_print_ascii_tabs(handler), COMMON_TABS_OK);
+    ck_assert_int_eq(common_tabs_print_ascii_tabs(NULL), COMMON_TABS_NEED_INIT);
+    ck_assert_int_eq(common_tabs_print_ascii_tabs(handler2), COMMON_TABS_HEADERS_ARE_REQUIRED);
+
+    ck_assert_int_eq(common_tabs_free(&handler), COMMON_TABS_OK);
+    ck_assert_int_eq(common_tabs_free(NULL), COMMON_TABS_BAD_INPUT);
+    ck_assert_int_eq(common_tabs_free(&handler2), COMMON_TABS_OK);
+    ck_assert_int_eq(common_tabs_free(&handler), COMMON_TABS_OK);
+
+    ck_assert_ptr_eq(handler, NULL);
+    ck_assert_ptr_eq(handler2, NULL);
+}
+
+Suite *check_tabs(void)
+{
+    Suite *s;
+    TCase *tc_core;
+
+    s = suite_create("tabs check");
+
+    tc_core = tcase_create("core");
+    tcase_add_test(tc_core, test_ok);
+    tcase_add_test(tc_core, test_input);
+
+    suite_add_tcase(s, tc_core);
+
+    return s;
+}
\ No newline at end of file