Abstract: The release of electricity sale side has enhanced the intense competition among the multi-agents in the market.It is of great significance to make a scientific and reasonable trading mechanism to promote the development of electricity market.In view of the current problems of weak awareness of the electricity market,repeated bilateral negotiation and high negotiation cost,a bidding model of electricity market based on compound bidding matchmaking trading mode is proposed firstly.This model mainly integrates the three stages of centralized bidding,double listing-picking and thermal power matching and unifies the hydro-power transaction and thermal power transaction,which realizes the market-oriented transaction mode where the price is found by centralized bidding,the transaction is promoted by double listing-picking and the user is facilitated by thermal power matching.Secondly,based on the detailed description of the design idea and related characteristics of compound bidding matchmaking,the mathematical model and calculation method are constructed to maximize the social welfare.Finally,the proposed bidding model is applied to the Sichuan electricity market.The results show that,compared with the single-model centralized bidding and the double listing-picking bidding,transaction rate of the power demand side with compound bidding matchmaking trading mode reaches 88.2%,and the transaction volume increases by 23% and 14%,respectively.The model effectively saves the time cost of the market subject and solves the problems such as insufficient competition in electricity market,the difficulty in participating in market competition,and market information asymmetry.