diff --git a/docs/system_base/libunistring/tc_libunistring_fun_001.yaml b/docs/system_base/libunistring/tc_libunistring_fun_001.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..1bd2065901457e4e26686ec0025dd2b8c21d0bdf
--- /dev/null
+++ b/docs/system_base/libunistring/tc_libunistring_fun_001.yaml
@@ -0,0 +1,47 @@
+×÷Õß:     xufei
+ÓÅÏȼ¶:   P1
+Ö§³Ö¼Ü¹¹: noarch
+Ö´Ðз½Ê½: ×Ô¶¯
+²âÊÔÀàÐÍ: ¹¦ÄܲâÊÔ
+ͨÓñêÇ©: local
+ÓÃÀýÃèÊö: ²âÊÔlibunistring¿â¹¦ÄÜ
+ÐÞ¸ÄÈË:   xufei
+
+Ç°ÖÃÌõ¼þ: 
+- ¿É°²×°libunistring¿ª·¢°ü
+- ¾ßÓÐrootȨÏÞ
+- Ö§³ÖCÓïÑÔ±àÒë
+- ÓÐ×ã¹»µÄ´ÅÅÌ¿Õ¼ä
+- Ö§³ÖC11±ê×¼
+- Ö§³Ölibunistring¿â
+- ¿É¶Áдµ±Ç°Ä¿Â¼
+
+²âÊÔ²½Öè:
+- °²×°¿ª·¢°ü
+- ÇåÀí¿ÉÄÜ´æÔڵľÉÎļþ
+- ´´½¨²âÊÔ³ÌÐò
+- ´´½¨libunistring_test.c
+- ±àд²âÊÔ´úÂë
+- ±àÒë³ÌÐò
+- ʹÓÃgcc±àÒë
+- ʹÓÃC11±ê×¼ºÍunistring¿â
+- ÑéÖ¤¿ÉÖ´ÐÐÎļþ
+- ¼ì²éa.outÎļþ´æÔÚ
+- ÔËÐвâÊÔ³ÌÐò
+- Ö´ÐÐa.out
+- ÑéÖ¤Êä³ö½á¹û
+- ¼ì²éÊä³öÊÇ·ñΪ"0000001000101"
+- ÇåÀí»·¾³
+- ɾ³ýÉú³ÉÎļþ
+- жÔØ¿ª·¢°ü
+
+ÆÚÍû½á¹û:
+- ³É¹¦°²×°¿ª·¢°ü
+- ³É¹¦´´½¨²âÊÔ³ÌÐò
+- ³É¹¦±àÒë³ÌÐò
+- ³É¹¦Éú³Éa.outÎļþ
+- ³É¹¦ÔËÐгÌÐò
+- Êä³ö½á¹ûΪ"0000001000101"
+- ËùÓÐÃüÁî·µ»ØÂëΪ0
+- ³É¹¦ÇåÀí»·¾³
+- libunistring¹¦ÄܲâÊÔͨ¹ý
\ No newline at end of file
diff --git a/tests/system_base/libunistring/libunistring_test.c b/tests/system_base/libunistring/libunistring_test.c
new file mode 100644
index 0000000000000000000000000000000000000000..f22415852dcf553a767c68dfb27a8a601536efcb
--- /dev/null
+++ b/tests/system_base/libunistring/libunistring_test.c
@@ -0,0 +1,32 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistr.h>
+#include <unictype.h>
+
+size_t n_of_utf8_chars(const uint8_t *s)
+{
+        ucs4_t c;
+        size_t n = 0;
+        for (const uint8_t *it = s; it;it = u8_next(&c, it)) n++;
+        n--;
+        return n;
+}
+ 
+int main(void)
+{
+        const uint8_t *s = (uint8_t *)"      葫  \t芦\n娃";
+        size_t  n = n_of_utf8_chars(s);
+        int *p = malloc(n * sizeof(int));
+        const uint8_t *it = s;
+        for (size_t i = 0; i < n; i++) {
+                ucs4_t c;
+                it = u8_next(&c, it);
+                if (uc_is_property_white_space(c)) p[i] = 0;
+                else p[i] = 1;
+        }
+        for (size_t i = 0; i < n; i++) {
+                printf("%d", p[i]);
+        }
+        printf("\n");
+        return 0;
+}
diff --git a/tests/system_base/libunistring/tc_libunistring_fun_001.py b/tests/system_base/libunistring/tc_libunistring_fun_001.py
new file mode 100644
index 0000000000000000000000000000000000000000..d7b2c085311980f799d0e3ff86bf7d9f13e3fe40
--- /dev/null
+++ b/tests/system_base/libunistring/tc_libunistring_fun_001.py
@@ -0,0 +1,55 @@
+# -*- encoding: utf-8 -*-
+
+"""
+@File:      tc_libunistring_fun_001.py
+@Time:      2026/04/28 10:23:53
+@Author:    xufei
+@Version:   1.0
+@Contact:   xufei@inspur.com
+@License:   Mulan PSL v2
+@Modify:    xufei
+"""
+
+from common.basetest import LocalTest
+
+
+class Test(LocalTest):
+    """
+    See tc_libunistring_fun_001.yaml for details
+
+    :avocado: tags=P1,noarch,local,libunistring
+    """
+    PARAM_DIC = {"pkg_name": "libunistring libunistring-devel gc gcc"}
+
+    def setUp(self):
+        super().setUp(self.PARAM_DIC)
+        self.log.info("Start to prepare the test environment.")
+        self.cmd('rm -rf ./a.out')
+        self.log.info("End to prepare the test environment.")
+
+    def test(self):
+        self.log.info("Start to run test.")
+        
+        code1, result1 = self.cmd('gcc -std=c11 -pedantic -lunistring libunistring_test.c')
+        self.assertEqual(code1, 0, "compilation of libunistring_test.c is failed")
+        
+        code2, result2 = self.cmd('ls ./a.out')
+        self.assertEqual(code2, 0, "file a.out is not created")
+        
+        code3, result3 = self.cmd('./a.out')
+        self.assertEqual(code3, 0, "The executable program a.out execution has failed")
+        
+        expected_output = "0000001000101"
+        actual_output = result3.strip()
+        self.assertEqual(actual_output, expected_output, 
+                        f"Expected '{expected_output}', got '{actual_output}'")
+        
+        self.log.info("End to run test.")
+
+    def tearDown(self):
+        super().tearDown(self.PARAM_DIC)
+        self.log.info("Start to restore the test environment.")
+        self.cmd('ls ./a.out && rm -rf ./a.out')
+        self.log.info("End to restore the test environment.")
+
+