diff --git a/interfaces/innerkits/c/neural_network_runtime_inner.h b/interfaces/innerkits/c/neural_network_runtime_inner.h
index 22de228e3a587afdfcb14e62cbca656ec6d76a39..b6d97e717970e8ebaf5db157b138d06c53572d9e 100644
--- a/interfaces/innerkits/c/neural_network_runtime_inner.h
+++ b/interfaces/innerkits/c/neural_network_runtime_inner.h
@@ -153,6 +153,18 @@ bool OH_NNModel_HasCache(const char *cacheDir, const char *modelName, uint32_t v
  */
 OH_NN_ReturnCode OH_NN_GetDeviceID(char *nnrtDevice, size_t len);
 
+/**
+ * @brief 对cache进行crc校验和检验
+ *
+ * 本接口不作为Neural Network Runtime接口对外开放。\n
+ *
+ * @param buffer 传入buffer参数。
+ * @param length 传入length参数。
+ * @return unsigned short值，函数的crc校验和。
+ * @since 11
+ * @version 1.0
+ */
+unsigned short CacheInfoGetCrc16(char* buffer, size_t length);
 #ifdef __cplusplus
 }
 #endif // __cpluscplus
diff --git a/interfaces/kits/c/neural_network_runtime/neural_network_runtime.h b/interfaces/kits/c/neural_network_runtime/neural_network_runtime.h
index fdffb3f1e74f3d1d94288a986aff4a2a69f0f9c7..f1c9040f90555110483229f7ef107223c8900940 100644
--- a/interfaces/kits/c/neural_network_runtime/neural_network_runtime.h
+++ b/interfaces/kits/c/neural_network_runtime/neural_network_runtime.h
@@ -635,7 +635,6 @@ OH_NN_ReturnCode OH_NNExecutor_SetOutputWithMemory(OH_NNExecutor *executor,
                                                    uint32_t outputIndex,
                                                    const OH_NN_Memory *memory);
 
-unsigned short CacheInfoGetCrc16(char* buffer, size_t length);
 #ifdef __cplusplus
 }
 #endif // __cplusplus