One or more embodiments of the description provide a blockchain-based claim settlement method and apparatus. The blockchain comprises a claim settlement organization node device and a service processing organization node device. The method comprises: obtaining, from a distributed database of the blockchain, a target transaction sent by the service processing organization node device, the target transaction comprising service behavior data generated by a claimant in the service processing organization node device; generating claim settlement plan logic for the claimant on the basis of the service behavior data comprised in the target transaction; and executing the claim settlement plan logic.