According to the national diamond theory of Michael Porter, choosing 5 species 15 indexes for evaluating the agricultural equipment manufacturing industry, the two-grade fuzzy comprehensive evaluation method was introduced and the international competitiveness of China, USA, Japan and Germany in Chinese market, American market and African market were analyzed respectively. It can be concluded that the industrial international competitiveness from large to small are China, Janpan,USA and Germany in Chinese market, while in American market, that are USA, Germany, Japan, China , and in African market, that are China, USA, Japan, Germany.