diff --git a/app/workers/pool_transaction_check_worker.rb b/app/workers/pool_transaction_check_worker.rb
index 523054079a..885c171639 100644
--- a/app/workers/pool_transaction_check_worker.rb
+++ b/app/workers/pool_transaction_check_worker.rb
@@ -16,6 +16,13 @@ def perform
           tx.create_reject_reason!(message: reason["reason"])
         end
       end
+
+      if reason["status"] == "unknown"
+        ApplicationRecord.transaction do
+          tx.update! tx_status: "rejected"
+          tx.create_reject_reason!(message: "unknown")
+        end
+      end
     end
   end
 end
diff --git a/test/workers/pool_transaction_check_worker_test.rb b/test/workers/pool_transaction_check_worker_test.rb
index 843627edab..b6babae46f 100644
--- a/test/workers/pool_transaction_check_worker_test.rb
+++ b/test/workers/pool_transaction_check_worker_test.rb
@@ -1,18 +1,31 @@
 require "test_helper"
 
 class PoolTransactionCheckWorkerTest < ActiveSupport::TestCase
-  setup do
+  test "should marked tx to rejected when rpc returns rejected" do
+    CkbSync::Api.any_instance.stubs(:generate_json_rpc_id).returns(1)
     rejected_tx_id = "0xed2049c21ffccfcd26281d60f8f77ff117adb9df9d3f8cbe5fe86e893c66d359"
-    @pending_tx = create(:pending_transaction,
-                         tx_hash: rejected_tx_id, created_at: 10.minutes.ago)
+    pending_tx = create(:pending_transaction,
+                        tx_hash: rejected_tx_id, created_at: 10.minutes.ago)
+
+    Sidekiq::Testing.inline!
+    VCR.use_cassette("get_rejected_transaction") do
+      PoolTransactionCheckWorker.perform_async
+      assert_equal "rejected", pending_tx.reload.tx_status
+      assert pending_tx.detailed_message.include?("Resolve failed Dead")
+    end
   end
 
-  test "should detect and mark failed tx from pending tx, for inputs" do
+  test "should marked tx to rejected when rpc returns unknown" do
+    CkbSync::Api.any_instance.stubs(:generate_json_rpc_id).returns(2)
+    unknown_tx_id = "0x1cebe4b6ddae45264790835200fe3a4efdc58e3474e552aff2246eb42b79ed2c"
+    pending_tx = create(:pending_transaction,
+                        tx_hash: unknown_tx_id, created_at: 10.minutes.ago)
+
     Sidekiq::Testing.inline!
     VCR.use_cassette("get_rejected_transaction") do
       PoolTransactionCheckWorker.perform_async
-      assert_equal "rejected", @pending_tx.reload.tx_status
-      assert @pending_tx.detailed_message.include?("Resolve failed Dead")
+      assert_equal "rejected", pending_tx.reload.tx_status
+      assert pending_tx.detailed_message.include?("unknown")
     end
   end
 end
diff --git a/vcr_fixtures/vcr_cassettes/get_rejected_transaction.yml b/vcr_fixtures/vcr_cassettes/get_rejected_transaction.yml
index 3c4088409b..c65b8d34a3 100644
--- a/vcr_fixtures/vcr_cassettes/get_rejected_transaction.yml
+++ b/vcr_fixtures/vcr_cassettes/get_rejected_transaction.yml
@@ -36,4 +36,37 @@ http_interactions:
         '
   recorded_at: Tue, 25 Oct 2022 02:20:50 GMT
 
+- request:
+    method: post
+    uri: http://localhost:8114/
+    body:
+      encoding: UTF-8
+      string: '{"id":2,"jsonrpc":"2.0","method":"get_transaction","params":["0x1cebe4b6ddae45264790835200fe3a4efdc58e3474e552aff2246eb42b79ed2c"]}'
+    headers:
+      Connection:
+      - close
+      Content-Type:
+      - application/json; charset=UTF-8
+      Host:
+      - localhost:8114
+      User-Agent:
+      - http.rb/5.0.4
+  response:
+    status:
+      code: 200
+      message: OK
+    headers:
+      Content-Type:
+      - application/json; charset=utf-8
+      Connection:
+      - close
+      Content-Length:
+      - '267'
+      Date:
+      - Tue, 25 Oct 2022 02:20:50 GMT
+    body:
+      encoding: UTF-8
+      string: '{"jsonrpc":"2.0","result":{"cycles":null,"fee":null,"min_replace_fee":null,"time_added_to_pool":null,"transaction":null,"tx_status":{"block_hash":null,"reason":null,"status":"unknown"}},"id":2}'
+  recorded_at: Tue, 25 Oct 2022 02:20:50 GMT
+
 recorded_with: VCR 6.0.0