Abstract: Based on the three-level architecture of "grid-aggregator-load", a control strategy for air source heat pump load aggregation to participate in demand response is proposed. As an aggregator of heat pump loads, heating operators use the energy storage capacity of the building itself, combined with time-of-use electricity prices, to minimize heating costs and evaluate the load adjustability potential on the basis of ensuring user thermal comfort. When the power grid dispatching department issues regulation instructions, it considers user comfort and grid regulation needs, and allocates each load adjustment amount based on a multi-objective genetic algorithm, which satisfies the regulation objectives while improving the aggregate power oscillation and large rebound load caused by regulation. question.Finally, simulation verifies the effectiveness of the proposed strategy.