Abstract: In order to carry out the reasonable planning of photovoltaic（PV）and battery energy storage（BES）for AC/DC distribution network under the market environment,this paper takes AC/DC distribution network operators as the main investors,and it proposes a photovoltaic-storage coordinated planning method of AC/DC distribution network based on cooperative game. It determines the cooperative game relationship between medium and low voltage AC/DC distribution network operators. And it aims to minimize the investment and operation（I＆O）costs,power purchase costs and bilateral market transaction（BMT）costs for the medium voltage distribution network,while it aims to minimize the I＆O costs,and BMT costs for the low-voltage distribution network. And a PV-BES coordinated planning model is proposed based on Nash bargaining theory,the transaction price formulation and planning strategy are optimized simultaneously. It introduces linearization methods to deal with nonlinear terms,and the model is transformed into two subproblems that are easy to solve,and then the distributed optimization algorithm is used to solve them sequentially. The feasibility and effectiveness of the proposed planning model and algorithm are verified through contrastive analysis of case studies.