diff --git a/Ubiquitous/XiUOS/kernel/kernel_test/Makefile b/Ubiquitous/XiUOS/kernel/kernel_test/Makefile
index e1daf45c1..d8d58996c 100644
--- a/Ubiquitous/XiUOS/kernel/kernel_test/Makefile
+++ b/Ubiquitous/XiUOS/kernel/kernel_test/Makefile
@@ -1,4 +1,4 @@
-SRC_FILES := test_main.c  
+SRC_FILES := test_main.c  test_fpu.c
 
 ifeq ($(CONFIG_KERNEL_TEST_SEM),y)
 	SRC_FILES += test_sem.c
diff --git a/Ubiquitous/XiUOS/kernel/kernel_test/test_fpu.c b/Ubiquitous/XiUOS/kernel/kernel_test/test_fpu.c
new file mode 100644
index 000000000..fddb3de19
--- /dev/null
+++ b/Ubiquitous/XiUOS/kernel/kernel_test/test_fpu.c
@@ -0,0 +1,35 @@
+/*
+* Copyright (c) 2020 AIIT XUOS Lab
+* XiUOS is licensed under Mulan PSL v2.
+* You can use this software according to the terms and conditions of the Mulan PSL v2.
+* You may obtain a copy of Mulan PSL v2 at:
+*        http://license.coscl.org.cn/MulanPSL2
+* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+* See the Mulan PSL v2 for more details.
+*/
+
+/**
+* @file test_fpu.c
+* @brief support to test touch function
+* @version 1.0 
+* @author AIIT XUOS Lab
+* @date 2022-01-11
+*/
+#include <xiuos.h>
+void FpuTest(void)
+{
+    float i = 8.25;
+    KPrintf("float i = 8.25 ['i %s 8' && 'i %s 9']\n",i > 8 ? ">" : "<",i < 9 ? "<" : ">");
+    float add = i + 5.1;
+    KPrintf("float add(13.35) = i + 5.1 ['add %s 13' && 'add %s 14']\n",add > 13 ? ">" : "<",add < 14 ? "<" : ">");
+    float sub = i - 5.1;
+    KPrintf("float sub(3.15) = i - 5.1 ['sub %s 3' && 'sub %s 4']\n",sub > 3 ? ">" : "<",sub < 4 ? "<" : ">");
+    float mul = i * 5.1;
+    KPrintf("float mul(42.075) = i * 5.1 ['mul %s 42' && 'mul %s 43']\n",mul > 42 ? ">" : "<",mul < 43 ? "<" : ">");
+    float div = i / 5.1;
+    KPrintf("float div(1.617) = i / 5.1 ['div %s 1' && 'div %s 2']\n",div > 1 ? ">" : "<",div < 2 ? "<" : ">");
+}
+
+SHELL_EXPORT_CMD(SHELL_CMD_PERMISSION(0)|SHELL_CMD_TYPE(SHELL_TYPE_CMD_FUNC)|SHELL_CMD_PARAM_NUM(0),FpuTest, FpuTest,  Close AC task );
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