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The application discloses a kind of based on blockchain transaction processing method, controller, storage medium and equipment, belong to blockchain technical field.The method includes: transaction pool module stores transaction in the form of key-value pair to transaction area, value includes transaction label and transaction data, transaction label is set to first content, indicates that transaction is not confirmed;Select a plurality of transactions that are not confirmed to form candidate block;Chain module synchronizes candidate block to proposal area, and synchronizes one confirmation block selected from the candidate block of proposal area to confirmation;Transaction pool module sets the transaction label of transaction in confirmation block to second content, indicates that transaction has been confirmed, deletes the candidate block of proposal area except confirmation block;Data in transaction area, proposal area and confirmation are synchronized by synchronization module based on CRDT.This application can decouple the coupling between synchronization module and verification module, transaction pool module and chain module, reduce the design complexity of synchronization module.