diff --git a/frameworks/test/moduletest/mock/blob.cpp b/frameworks/test/moduletest/mock/blob.cpp
index 540888d0f6f0bddd56e2f06b1af89b6658802a38..9acb0f99ddf2a48f540001de8bea5a3bd729e4fb 100644
--- a/frameworks/test/moduletest/mock/blob.cpp
+++ b/frameworks/test/moduletest/mock/blob.cpp
@@ -157,20 +157,6 @@ bool Blob::StartsWith(const Blob &blob) const
     return true;
 }
 
-bool Blob::Marshalling(Parcel &parcel) const
-{
-    return parcel.WriteUInt8Vector(this->blob_);
-}
-
-Blob *Blob::Unmarshalling(Parcel &parcel)
-{
-    std::vector<uint8_t> blobData;
-    if (!parcel.ReadUInt8Vector(&blobData)) {
-        return nullptr;
-    }
-    return new Blob(blobData);
-}
-
 /* write blob size and data to memory buffer. return error when bufferLeftSize not enough. */
 bool Blob::WriteToBuffer(uint8_t *&cursorPtr, int &bufferLeftSize) const
 {
diff --git a/services/ans/test/unittest/mock/blob.cpp b/services/ans/test/unittest/mock/blob.cpp
index 540888d0f6f0bddd56e2f06b1af89b6658802a38..9acb0f99ddf2a48f540001de8bea5a3bd729e4fb 100644
--- a/services/ans/test/unittest/mock/blob.cpp
+++ b/services/ans/test/unittest/mock/blob.cpp
@@ -157,20 +157,6 @@ bool Blob::StartsWith(const Blob &blob) const
     return true;
 }
 
-bool Blob::Marshalling(Parcel &parcel) const
-{
-    return parcel.WriteUInt8Vector(this->blob_);
-}
-
-Blob *Blob::Unmarshalling(Parcel &parcel)
-{
-    std::vector<uint8_t> blobData;
-    if (!parcel.ReadUInt8Vector(&blobData)) {
-        return nullptr;
-    }
-    return new Blob(blobData);
-}
-
 /* write blob size and data to memory buffer. return error when bufferLeftSize not enough. */
 bool Blob::WriteToBuffer(uint8_t *&cursorPtr, int &bufferLeftSize) const
 {
diff --git a/services/distributed/test/unittest/mock/mock_blob.cpp b/services/distributed/test/unittest/mock/mock_blob.cpp
index d55add0bd2799e9014613be509014c0b60be6dae..490a6675829d9bd1909c0bc3d3f3abef52de68b1 100644
--- a/services/distributed/test/unittest/mock/mock_blob.cpp
+++ b/services/distributed/test/unittest/mock/mock_blob.cpp
@@ -90,18 +90,5 @@ std::string Blob::ToString() const
     return str;
 }
 
-bool Blob::Marshalling(Parcel &parcel) const
-{
-    return parcel.WriteUInt8Vector(this->blob_);
-}
-
-Blob *Blob::Unmarshalling(Parcel &parcel)
-{
-    std::vector<uint8_t> blobData;
-    if (!parcel.ReadUInt8Vector(&blobData)) {
-        return nullptr;
-    }
-    return new Blob(blobData);
-}
 }  // namespace DistributedKv
 }  // namespace OHOS
\ No newline at end of file
diff --git a/services/test/moduletest/mock/blob.cpp b/services/test/moduletest/mock/blob.cpp
index 540888d0f6f0bddd56e2f06b1af89b6658802a38..9acb0f99ddf2a48f540001de8bea5a3bd729e4fb 100644
--- a/services/test/moduletest/mock/blob.cpp
+++ b/services/test/moduletest/mock/blob.cpp
@@ -157,20 +157,6 @@ bool Blob::StartsWith(const Blob &blob) const
     return true;
 }
 
-bool Blob::Marshalling(Parcel &parcel) const
-{
-    return parcel.WriteUInt8Vector(this->blob_);
-}
-
-Blob *Blob::Unmarshalling(Parcel &parcel)
-{
-    std::vector<uint8_t> blobData;
-    if (!parcel.ReadUInt8Vector(&blobData)) {
-        return nullptr;
-    }
-    return new Blob(blobData);
-}
-
 /* write blob size and data to memory buffer. return error when bufferLeftSize not enough. */
 bool Blob::WriteToBuffer(uint8_t *&cursorPtr, int &bufferLeftSize) const
 {