Block chain transaction method, device and system based on business chain and storage medium

The invention relates to a block chain technology, and discloses a block chain transaction method, device and system based on a business chain and a storage medium, and the method comprises the steps: maintaining a full account book and a sub account book through subscribing block chain nodes of a first channel and a second channel of a block chain consensus service; when the block chain node of the first channel executes the transaction specified by the transaction request, if the transaction request carries the business serial number, the block chain node of the second channel caches the hash address of the transaction data corresponding to the transaction request in the full account book. The hash addresses are shared by all transaction parties of the service chain when the associated transactions are executed, so that hash addresses corresponding to transaction requests carrying the same transaction serial number and sent by different transaction parties can be packaged into a traceability block, and the