International competitiveness is the ability of the market participants affecting the market prices which is the ability of photovoltaic manufacturing enterprises affecting the clear market prices in the photovoltaic manufacturing international market. In the current policy of photovoltaic manufacturing enterprise capacity subsidy, the policy of reduce excessive capacity is introduced. Then, the complete competition model, Cournot model, Stckelberg model, Forchheimer model, Forchheimer-Stckelberg hybrid model and alliance model are established respectively to simulate the photovoltaic manufacturing market. The international competitiveness of photovoltaic manufacturing enterprises is calculated based on the maximum market price under different markets, and the impact of subsidy policy and reducing excessive capacity policy on international competitiveness is analyzed. The results show that the market price and international competitiveness of the alliance model are the highest in the six models, and the appropriate reducing excessive capacity policy can improve the market price of each model. This work is supported by National Natural Science Foundation of China (No. 71573084).