Abstract: Mandatory access policy has a significant impact on the benefit distribution among the renewable electricity supply chain parts. Aiming at the analysis of the effect, four policy scenarios about price or quantity control are set. Based on a two-level supply chain composed of a generator and a grid model, a game model is built by using Stackberg theory, and the optimal benefit of the parties is solved by backward induction. Analysis of the benefit distribution results under four policy scenarios is compared. Results show that the generation cost is a key factor to the benefit distribution. Control policies about price or quality contribute to the benefit improvement, but cannot guarantee the rational allocation. Quantitative control is conducive to the realization of the renewable energy development goals, and price relaxes conducive to the internalization of the additional cost of power generation. It is concluded that the quota policy is the renewable electricity policy direction, in view of benefit increase and distribution.