Under the high-end industry but the low end of value chain of photovoltaic industry, this paper sets up the evaluation index system of the growth ability of China's photovoltaic industry, from the three dimensions of supporting ability, beneficial result ability and innovation ability. Using the multistep fuzzy comprehensive evaluation model, this paper haves comprehensive evaluation on the ability of the growth of 21 provinces and regions. The conclusion shows that the level of the growth ability has greater relevance of regional distribution and economic development level. In the four major regional plates, eastern is the strongest growth ability of photovoltaic industry, the growth ability of the industrial agglomeration in middle area is greater than the west, northeast is the weakest, and puts forward the related suggestions of different regional section to enhance the growth ability of photovoltaic industry on this basis.