In order to consummate and improve the model and method of post-evaluation for distribution system rolling planning, this paper proposes to use fuzzy analytic hierarchy process to determine the indicator weights at the different level by comparing the importance of each index. A case study of the 4 distribution system rolling planning for 3 regions in Guizhou shows the method of weight setting is valid. Meanwhile the paper analyzes the weight sensitivity of primary indicator, and obtains the sensitivity thresholds which may cause the change of the ranking. It has positive significance and valuable reference for the theoretical research and engineering practice of the post-evaluation for distribution system planning.