Abstract: Residential users take load aggregators as intermediaries to participate in demand response, and often do not have the right to speak and choose in transactions, thus resulting in the trust problems such as opaque information and excessive third-party power. At the same time, due to the poor information acquisition ability and the weak real-time load control ability, it is difficult for residents to share equal decision-making rights, informed rights and discourse rights in aggregation response. Therefore, based on the blockchain technology, a multi-party co-governance transaction mode for load aggregators and residential users is designed, and a blockchain node model and configuration method are established based on the basic principle of autonomous sharing among the blockchain nodes of residential users and aggregators with three types of flexible loads; Based on the new mode of aggregate response between load aggregators and residential user nodes, an incentive mechanism supported by non-cooperative game between aggregators, evolutionary game between residential users, Stackelberg game between aggregators and residential users is constructed. An incentive compatible smart contract algorithm and block data structure are designed, and the response identification factor and incentive rationality coefficient are proposed to evaluate the effectiveness of the proposed transaction mode. Finally, the simulation results of a case show that the proposed transaction mode can ensure the efficiency and credibility of aggregation services on the basis of ensuring the utility of each transaction node, and is conducive to waking up massive sleeping resources on the demand side.