The "dual-credit" policy puts forward higher requirements for the technological innovation and production decision of new energy vehicles. This paper takes the new energy vehicle manufacturer as the research object, and analyzes the optimal decision problems of mixed production of three new energy vehicles under the two decision modes of battery self-standard and battery outsourcing, and under the constraints of cost, range, fuel cell power and integral price. The research shows that: 1) under the two decision-making mode the price, production and profit of the new energy vehicles will increase accordingly with the increase of the integral price; 2) under the "dual-credit policy", pure electric vehicle and fuel cell vehicle are affected by the range and fuel cell power respectively and have an optimal solution 3) with the same consumer preference, cost, integral price, etc., the mixed production under self-standard decisions can make more profits compared with outsourcing decisions."dual-credit" policy; new energy vehicles; mixed production; endurance; battery power

"dual-credit" policy; new energy vehicles; mixed production; endurance; battery power