diff --git a/services/key_enable/utils/include/key_utils.h b/services/key_enable/utils/include/key_utils.h
index 7044124d23ad854bcd0e37e027cb5a7bd11e7b9c..7ba018c14421a0973ae953deb74d7147c48cc781 100644
--- a/services/key_enable/utils/include/key_utils.h
+++ b/services/key_enable/utils/include/key_utils.h
@@ -41,7 +41,6 @@ KeySerial KeyctlRestrictKeyring(
     const char *restriction);
 
 bool IsRdDevice();
-int32_t CheckEfuseStatus(char *buf, ssize_t bunLen);
 #ifdef __cplusplus
 }
 #endif
diff --git a/services/key_enable/utils/src/devices_security.cpp b/services/key_enable/utils/src/devices_security.cpp
index a1cd19e2ea5abe38f923829bade885f4b74b5922..3ccca6e9476494ded7fb29143bab18d823e16101 100644
--- a/services/key_enable/utils/src/devices_security.cpp
+++ b/services/key_enable/utils/src/devices_security.cpp
@@ -48,7 +48,7 @@ static bool CheckDeviceMode(char *buf, ssize_t bunLen)
     return false;
 }
 
-int32_t CheckEfuseStatus(char *buf, ssize_t bunLen)
+static int32_t CheckEfuseStatus(char *buf, ssize_t bunLen)
 {
     if (strstr(buf, "efuse_status=1")) {
         LOG_DEBUG(LABEL, "device is not efused");
diff --git a/test/unittest/key_enable_utils_test.cpp b/test/unittest/key_enable_utils_test.cpp
index e10f7442a647e65235789ba3484889e905d06cfd..656863ebd9a53c8468b446a1e6ba7f3ea0b19824 100644
--- a/test/unittest/key_enable_utils_test.cpp
+++ b/test/unittest/key_enable_utils_test.cpp
@@ -46,36 +46,6 @@ HWTEST_F(KeyEnableUtilsTest, KeyEnableUtilsTest_0001, TestSize.Level0)
 {
     EXPECT_EQ(IsRdDevice(), true);
 }
-
-/**
- * @tc.name: KeyEnableUtilsTest_0002
- * @tc.desc: check efuse status
- * @tc.type: Func
- * @tc.require: issueI8FCGF
- */
-HWTEST_F(KeyEnableUtilsTest, KeyEnableUtilsTest_0002, TestSize.Level0)
-{
-    std::string str = "efuse_status=0";
-    char *buf = const_cast<char*>(str.c_str());
-    ssize_t bunLen = 0;
-    int32_t ret = CheckEfuseStatus(buf, bunLen);
-    EXPECT_EQ(ret, false);
-}
-
-/**
- * @tc.name: KeyEnableUtilsTest_0003
- * @tc.desc: check efuse status
- * @tc.type: Func
- * @tc.require: issueI8FCGF
- */
-HWTEST_F(KeyEnableUtilsTest, KeyEnableUtilsTest_0003, TestSize.Level0)
-{
-    std::string str = "efuse_status=1";
-    char *buf = const_cast<char*>(str.c_str());
-    ssize_t bunLen = 0;
-    int32_t ret = CheckEfuseStatus(buf, bunLen);
-    EXPECT_EQ(ret, true);
-}
 } // namespace CodeSign
 } // namespace Security
 } // namespace OHOS