diff --git a/paddle/fluid/inference/paddle_inference.map b/paddle/fluid/inference/paddle_inference.map
index acbdcf5d783583df69657ea4335a1ab9a91caeeb..3d2dc85cb8368fe387a8d5c4a6c2ac6f61bac1d1 100644
--- a/paddle/fluid/inference/paddle_inference.map
+++ b/paddle/fluid/inference/paddle_inference.map
@@ -39,9 +39,6 @@
 			*paddle::GPUContextResource*;
 			*paddle::CPUContextResource*;
 
-			*paddle::LoadCustomOperatorLib*;
-			*paddle::RegisterAllCustomOperator*;
-
 			/* ut needs the following symbol, we need to modify all the ut to hidden such symbols */
 
 			/* Another question: the ut size will grow from 50M to 80M, why? */
diff --git a/paddle/fluid/inference/paddle_inference_custom_device.map b/paddle/fluid/inference/paddle_inference_custom_device.map
index 83de7d9a77566f7b84798b0bb794dfb86ffab7f4..7434678d8679ad6387be370cae87e0f2da67f4ad 100644
--- a/paddle/fluid/inference/paddle_inference_custom_device.map
+++ b/paddle/fluid/inference/paddle_inference_custom_device.map
@@ -39,9 +39,6 @@
 			*paddle::GPUContextResource*;
 			*paddle::CPUContextResource*;
 
-			*paddle::LoadCustomOperatorLib*;
-			*paddle::RegisterAllCustomOperator*;
-
 			/* ut needs the following symbol, we need to modify all the ut to hidden such symbols */
 
 			/* Another question: the ut size will grow from 50M to 80M, why? */
diff --git a/paddle/phi/api/ext/op_meta_info.h b/paddle/phi/api/ext/op_meta_info.h
index 7d2be9c90d79ed5b950d3d23866833e8511a98fc..978599c3bc299acb21b21255f8732feb4e82c537 100644
--- a/paddle/phi/api/ext/op_meta_info.h
+++ b/paddle/phi/api/ext/op_meta_info.h
@@ -619,16 +619,6 @@ class PADDLE_API OpMetaInfoBuilder {
   size_t index_;
 };
 
-/////////////////////// Op register API /////////////////////////
-
-// For inference: compile directly with framework
-// Call after PD_BUILD_OP(...)
-void RegisterAllCustomOperator();
-
-// Using this api to load compiled custom operator's dynamic library and
-// register Custom Operator into it
-void LoadCustomOperatorLib(const std::string& dso_name);
-
 /////////////////////// Op register Macro /////////////////////////
 
 #define PD_BUILD_OP(op_name)                                                   \
diff --git a/paddle/phi/api/lib/op_meta_info.cc b/paddle/phi/api/lib/op_meta_info.cc
index 8d64246bdb69f8ec4cc7173310530b705e7ffe04..a6b7921c30c61cd142b72cbda3f59b7db005fb08 100644
--- a/paddle/phi/api/lib/op_meta_info.cc
+++ b/paddle/phi/api/lib/op_meta_info.cc
@@ -19,7 +19,6 @@ limitations under the License. */
 #include <vector>
 
 #include "glog/logging.h"
-#include "paddle/fluid/framework/custom_operator.h"
 #include "paddle/phi/core/dense_tensor.h"
 #include "paddle/phi/core/enforce.h"
 
@@ -244,17 +243,6 @@ OpMetaInfoBuilder& OpMetaInfoBuilder::SetInferDtypeFn(InferDtypeFunc func) {
   info_ptr_->SetInferDtypeFn(std::forward<InferDtypeFunc>(func));
   return *this;
 }
-
-/////////////////////// Op register API /////////////////////////
-
-void RegisterAllCustomOperator() {
-  auto& op_meta_info_map = OpMetaInfoMap::Instance();
-  framework::RegisterOperatorWithMetaInfoMap(op_meta_info_map);
-}
-
-void LoadCustomOperatorLib(const std::string& dso_name) {
-  paddle::framework::LoadOpMetaInfoAndRegisterOp(dso_name);
-}
 }  // namespace paddle
 
 #ifdef __cplusplus