diff --git a/test/fuzztest/hdimanager/loaddevice_fuzzer/BUILD.gn b/test/fuzztest/hdimanager/loaddevice_fuzzer/BUILD.gn
index 3315dec9..c06cba00 100644
--- a/test/fuzztest/hdimanager/loaddevice_fuzzer/BUILD.gn
+++ b/test/fuzztest/hdimanager/loaddevice_fuzzer/BUILD.gn
@@ -6,7 +6,7 @@
 
 import("//build/config/features.gni")
 import("//build/test.gni")
-module_output_path = "hdf/srvmgr"
+module_output_path = "hdf/hdi"
 
 ohos_fuzztest("LoadDeviceFuzzTest") {
   module_out_path = module_output_path
diff --git a/test/fuzztest/hdimanager/loaddevice_fuzzer/loaddevice_fuzzer.cpp b/test/fuzztest/hdimanager/loaddevice_fuzzer/loaddevice_fuzzer.cpp
index e9882338..145920a5 100644
--- a/test/fuzztest/hdimanager/loaddevice_fuzzer/loaddevice_fuzzer.cpp
+++ b/test/fuzztest/hdimanager/loaddevice_fuzzer/loaddevice_fuzzer.cpp
@@ -11,17 +11,20 @@
 #include <cstdint>
 #include <hdf_base.h>
 #include "idevmgr_hdi.h"
+#include "parcel.h"
 
 using namespace OHOS::HDI::DeviceManager::V1_0;
 
 namespace OHOS {
-sptr<IDeviceManager> g_devicemanager = IDeviceManager::Get();
+sptr<IDeviceManager> g_deviceManager = IDeviceManager::Get();
 
 bool LoadDeviceFuzzTest(const uint8_t *data, size_t size)
 {
     bool result = false;
-    std::string serviceName((const char *)data);
-    if (g_devicemanager != nullptr && g_devicemanager->LoadDevice(serviceName) == HDF_SUCCESS) {
+    Parcel parcel;
+    parcel.WriteBuffer(data, size);
+    auto servicename = parcel.ReadString();
+    if (g_deviceManager != nullptr && g_deviceManager->LoadDevice(servicename) == HDF_SUCCESS) {
         result = true;
     }
     return result;
diff --git a/test/fuzztest/hdimanager/registerservicestatuslistener_fuzzer/BUILD.gn b/test/fuzztest/hdimanager/registerservicestatuslistener_fuzzer/BUILD.gn
index c684fff6..107f0e3a 100644
--- a/test/fuzztest/hdimanager/registerservicestatuslistener_fuzzer/BUILD.gn
+++ b/test/fuzztest/hdimanager/registerservicestatuslistener_fuzzer/BUILD.gn
@@ -6,7 +6,7 @@
 
 import("//build/config/features.gni")
 import("//build/test.gni")
-module_output_path = "hdf/srvmgr"
+module_output_path = "hdf/hdi"
 
 ohos_fuzztest("RegisterServiceStatusListenerFuzzTest") {
   module_out_path = module_output_path
diff --git a/test/fuzztest/hdimanager/registerservicestatuslistener_fuzzer/registerservicestatuslistener_fuzzer.cpp b/test/fuzztest/hdimanager/registerservicestatuslistener_fuzzer/registerservicestatuslistener_fuzzer.cpp
index 010b0bfa..526a59ed 100644
--- a/test/fuzztest/hdimanager/registerservicestatuslistener_fuzzer/registerservicestatuslistener_fuzzer.cpp
+++ b/test/fuzztest/hdimanager/registerservicestatuslistener_fuzzer/registerservicestatuslistener_fuzzer.cpp
@@ -15,6 +15,7 @@
 #include <refbase.h>
 #include "iservmgr_hdi.h"
 #include "iservstat_listener_hdi.h"
+#include "parcel.h"
 
 using namespace OHOS::HDI::ServiceManager::V1_0;
 
@@ -32,8 +33,8 @@ void RegisterServStatListenerFuzzer::OnReceive(const ServiceStatus &status)
 } // namespace OHOS
 
 namespace OHOS {
-sptr<IServiceManager> g_servmanager = IServiceManager::Get();
-sptr<IServStatListener> g_servstatlistener = new RegisterServStatListenerFuzzer();
+sptr<IServiceManager> g_servManager = IServiceManager::Get();
+sptr<IServStatListener> g_servStatListener = new RegisterServStatListenerFuzzer();
 
 bool RegisterServiceStatusListenerFuzzTest(const uint8_t *data, size_t size)
 {
@@ -42,9 +43,12 @@ bool RegisterServiceStatusListenerFuzzTest(const uint8_t *data, size_t size)
         return false;
     }
 
-    if (g_servmanager != nullptr &&
-        g_servmanager->RegisterServiceStatusListener(g_servstatlistener, *((uint16_t *)data)) == HDF_SUCCESS) {
-        g_servmanager->UnregisterServiceStatusListener(g_servstatlistener);
+    Parcel parcel;
+    parcel.WriteBuffer(data, size);
+    auto deviceclass = parcel.ReadUint16();
+    if (g_servManager != nullptr &&
+        g_servManager->RegisterServiceStatusListener(g_servStatListener, deviceclass) == HDF_SUCCESS) {
+        g_servManager->UnregisterServiceStatusListener(g_servStatListener);
         result = true;
     }
 
diff --git a/test/fuzztest/hdimanager/unloaddevice_fuzzer/unloaddevice_fuzzer.cpp b/test/fuzztest/hdimanager/unloaddevice_fuzzer/unloaddevice_fuzzer.cpp
index 6ba14c3a..a9cb32f0 100644
--- a/test/fuzztest/hdimanager/unloaddevice_fuzzer/unloaddevice_fuzzer.cpp
+++ b/test/fuzztest/hdimanager/unloaddevice_fuzzer/unloaddevice_fuzzer.cpp
@@ -12,23 +12,26 @@
 #include <hdf_base.h>
 #include <hdi_base.h>
 #include "idevmgr_hdi.h"
+#include "parcel.h"
 
 using namespace OHOS::HDI::DeviceManager::V1_0;
 
 static constexpr const char *TEST_SERVICE_NAME = "sample_driver_service";
 
 namespace OHOS {
-sptr<IDeviceManager> g_devicemanager = IDeviceManager::Get();
+sptr<IDeviceManager> g_deviceManager = IDeviceManager::Get();
 
 bool UnloadDeviceFuzzTest(const uint8_t *data, size_t size)
 {
     bool result = false;
-    std::string serviceName((const char *)data);
-    if (g_devicemanager != nullptr && g_devicemanager->LoadDevice(TEST_SERVICE_NAME) == HDF_SUCCESS) {
+    Parcel parcel;
+    parcel.WriteBuffer(data, size);
+    auto servicename = parcel.ReadString();
+    if (g_deviceManager != nullptr && g_deviceManager->LoadDevice(TEST_SERVICE_NAME) == HDF_SUCCESS) {
         result = true;
     }
 
-    if (g_devicemanager != nullptr && g_devicemanager->UnloadDevice(serviceName) == HDF_SUCCESS) {
+    if (g_deviceManager != nullptr && g_deviceManager->UnloadDevice(servicename) == HDF_SUCCESS) {
         result = true;
     }
     return result;
diff --git a/test/fuzztest/ioservice/ioservicebind_fuzzer/BUILD.gn b/test/fuzztest/ioservice/ioservicebind_fuzzer/BUILD.gn
index 6b64aadb..218a4f14 100644
--- a/test/fuzztest/ioservice/ioservicebind_fuzzer/BUILD.gn
+++ b/test/fuzztest/ioservice/ioservicebind_fuzzer/BUILD.gn
@@ -14,8 +14,10 @@ ohos_fuzztest("IoserviceBindFuzzTest") {
   fuzz_config_file =
       "//drivers/framework/test/fuzztest/ioservice/ioservicebind_fuzzer"
 
-  include_dirs =
-      [ "//drivers/framework/test/fuzztest/ioservice/ioservicebind_fuzzer.h" ]
+  include_dirs = [
+    "//drivers/framework/test/fuzztest/ioservice/ioservicebind_fuzzer.h",
+    "//utils/native/base/include",
+  ]
   cflags = [
     "-g",
     "-O0",
@@ -23,7 +25,10 @@ ohos_fuzztest("IoserviceBindFuzzTest") {
     "-fno-omit-frame-pointer",
   ]
   sources = [ "ioservicebind_fuzzer.cpp" ]
-  external_deps = [ "device_driver_framework:libhdf_utils" ]
+  external_deps = [
+    "device_driver_framework:libhdf_utils",
+    "utils_base:utils",
+  ]
 }
 
 group("fuzztest") {
diff --git a/test/fuzztest/ioservice/ioservicebind_fuzzer/ioservicebind_fuzzer.cpp b/test/fuzztest/ioservice/ioservicebind_fuzzer/ioservicebind_fuzzer.cpp
index 7e989a00..7fd0febd 100644
--- a/test/fuzztest/ioservice/ioservicebind_fuzzer/ioservicebind_fuzzer.cpp
+++ b/test/fuzztest/ioservice/ioservicebind_fuzzer/ioservicebind_fuzzer.cpp
@@ -11,12 +11,16 @@
 #include <cstdint>
 #include "hdf_base.h"
 #include "hdf_io_service.h"
+#include "parcel.h"
 
 namespace OHOS {
 bool IoserviceBindFuzzTest(const uint8_t *data, size_t size)
 {
     bool result = false;
-    struct HdfIoService *testServ = HdfIoServiceBind((const char *)data);
+    Parcel parcel;
+    parcel.WriteBuffer(data, size);
+    auto servicename = parcel.ReadCString();
+    struct HdfIoService *testServ = HdfIoServiceBind(servicename);
     if (testServ != nullptr) {
         result = true;
     }
diff --git a/test/fuzztest/ioservice/ioservicegrouplisten_fuzzer/BUILD.gn b/test/fuzztest/ioservice/ioservicegrouplisten_fuzzer/BUILD.gn
index ae3627da..9a6b48e3 100644
--- a/test/fuzztest/ioservice/ioservicegrouplisten_fuzzer/BUILD.gn
+++ b/test/fuzztest/ioservice/ioservicegrouplisten_fuzzer/BUILD.gn
@@ -16,6 +16,7 @@ ohos_fuzztest("IoserviceGroupListenFuzzTest") {
 
   include_dirs = [
     "//drivers/framework/test/fuzztest/ioservice/ioservicegrouplisten_fuzzer.h",
+    "//utils/native/base/include",
   ]
   cflags = [
     "-g",
diff --git a/test/fuzztest/ioservice/ioservicegrouplisten_fuzzer/ioservicegrouplisten_fuzzer.cpp b/test/fuzztest/ioservice/ioservicegrouplisten_fuzzer/ioservicegrouplisten_fuzzer.cpp
index 878709b7..299c9feb 100644
--- a/test/fuzztest/ioservice/ioservicegrouplisten_fuzzer/ioservicegrouplisten_fuzzer.cpp
+++ b/test/fuzztest/ioservice/ioservicegrouplisten_fuzzer/ioservicegrouplisten_fuzzer.cpp
@@ -14,6 +14,7 @@
 #include "hdf_log.h"
 #include "hdf_io_service.h"
 #include "osal_time.h"
+#include "parcel.h"
 
 namespace OHOS {
 struct Eventlistener {
@@ -52,7 +53,10 @@ static int OnDevEventReceived(
 bool IoserviceGroupListenFuzzTest(const uint8_t *data, size_t size)
 {
     bool result = false;
-    struct HdfIoService *serv = HdfIoServiceBind((const char *)data);
+    Parcel parcel;
+    parcel.WriteBuffer(data, size);
+    auto servicename = parcel.ReadCString();
+    struct HdfIoService *serv = HdfIoServiceBind(servicename);
     if (serv == nullptr) {
         return false;
     }
diff --git a/test/fuzztest/ioservice/ioservicelisten_fuzzer/BUILD.gn b/test/fuzztest/ioservice/ioservicelisten_fuzzer/BUILD.gn
index 23d49b3e..ceb45a48 100644
--- a/test/fuzztest/ioservice/ioservicelisten_fuzzer/BUILD.gn
+++ b/test/fuzztest/ioservice/ioservicelisten_fuzzer/BUILD.gn
@@ -14,8 +14,10 @@ ohos_fuzztest("IoserviceListenFuzzTest") {
   fuzz_config_file =
       "//drivers/framework/test/fuzztest/ioservice/ioservicelisten_fuzzer"
 
-  include_dirs =
-      [ "//drivers/framework/test/fuzztest/ioservice/ioservicelisten_fuzzer.h" ]
+  include_dirs = [
+    "//drivers/framework/test/fuzztest/ioservice/ioservicelisten_fuzzer.h",
+    "//utils/native/base/include",
+  ]
   cflags = [
     "-g",
     "-O0",
diff --git a/test/fuzztest/ioservice/ioservicelisten_fuzzer/ioservicelisten_fuzzer.cpp b/test/fuzztest/ioservice/ioservicelisten_fuzzer/ioservicelisten_fuzzer.cpp
index fffa6dc4..1d909732 100644
--- a/test/fuzztest/ioservice/ioservicelisten_fuzzer/ioservicelisten_fuzzer.cpp
+++ b/test/fuzztest/ioservice/ioservicelisten_fuzzer/ioservicelisten_fuzzer.cpp
@@ -14,6 +14,7 @@
 #include "hdf_log.h"
 #include "hdf_io_service.h"
 #include "osal_time.h"
+#include "parcel.h"
 
 namespace OHOS {
 struct Eventlistener {
@@ -52,7 +53,10 @@ static int OnDevEventReceived(
 bool IoserviceListenFuzzTest(const uint8_t *data, size_t size)
 {
     bool result = false;
-    struct HdfIoService *serv = HdfIoServiceBind((const char *)data);
+    Parcel parcel;
+    parcel.WriteBuffer(data, size);
+    auto servicename = parcel.ReadCString();
+    struct HdfIoService *serv = HdfIoServiceBind(servicename);
     if (serv == nullptr) {
         return false;
     }
diff --git a/test/fuzztest/ioservice/ioserviceremove_fuzzer/BUILD.gn b/test/fuzztest/ioservice/ioserviceremove_fuzzer/BUILD.gn
index 399b2ff2..ef437c85 100644
--- a/test/fuzztest/ioservice/ioserviceremove_fuzzer/BUILD.gn
+++ b/test/fuzztest/ioservice/ioserviceremove_fuzzer/BUILD.gn
@@ -14,8 +14,10 @@ ohos_fuzztest("IoserviceRemoveFuzzTest") {
   fuzz_config_file =
       "//drivers/framework/test/fuzztest/ioservice/ioserviceremove_fuzzer"
 
-  include_dirs =
-      [ "//drivers/framework/test/fuzztest/ioservice/ioserviceremove_fuzzer.h" ]
+  include_dirs = [
+    "//drivers/framework/test/fuzztest/ioservice/ioserviceremove_fuzzer.h",
+    "//utils/native/base/include",
+  ]
   cflags = [
     "-g",
     "-O0",
diff --git a/test/fuzztest/ioservice/ioserviceremove_fuzzer/ioserviceremove_fuzzer.cpp b/test/fuzztest/ioservice/ioserviceremove_fuzzer/ioserviceremove_fuzzer.cpp
index 3c898e95..1952562a 100644
--- a/test/fuzztest/ioservice/ioserviceremove_fuzzer/ioserviceremove_fuzzer.cpp
+++ b/test/fuzztest/ioservice/ioserviceremove_fuzzer/ioserviceremove_fuzzer.cpp
@@ -11,12 +11,16 @@
 #include <cstdint>
 #include "hdf_base.h"
 #include "hdf_io_service.h"
+#include "parcel.h"
 
 namespace OHOS {
 bool IoserviceGroupRemoveServiceFuzzTest(const uint8_t *data, size_t size)
 {
     bool result = false;
-    struct HdfIoService *serv = HdfIoServiceBind((const char *)data);
+    Parcel parcel;
+    parcel.WriteBuffer(data, size);
+    auto servicename = parcel.ReadCString();
+    struct HdfIoService *serv = HdfIoServiceBind(servicename);
     if (serv == nullptr) {
         return false;
     }