The multi-output forward converter has a simple structure, high reliability, and wide application, but there is a problem of cross regulation. In order to fundamentally improve the cross regulation problem of the multi-output forward converter, a target average current control strategy is proposed. The specific method is to use ARM to sample the real-time voltage and real-time current of each output terminal to obtain the real-time load, and combine the expected output voltage to calculate the target average current, and according to the target average current and the hardware parameters of the multi-output forward converter, the conduction time of the main circuit switching transistor and each secondary side rectifier switching transistor is calculated . The program automatically controls the conduction time of each switching transistor to realize that the average output current of each output circuit is equal to the target average current. The experimental results show that the multiple output forward converter using output average current control has a cross regulation rate of less than 1.6%. The multiple output forward converter controlled by this strategy can not only achieve a low cross regulation rate, but also has a higher voltage accuracy.