Aiming at the problem of optimal resource allocation of early warning satellite constellation system for ballistic missiles in China, a multi-target satellite constellation resource optimization configuration scheme based on dynamic programming method is proposed. This method is essentially a nonlinear programming method. The principle can be reduced to a basic recursive relationship. The constellation of the ballistic target observed in a single frame of the early warning satellite constellation is taken as a resource to be allocated, and the constellation scheme evaluation function is established to minimize the possibility of losing the ballistic target, thereby achieving the goal of not losing the target or state information. Experiments show that this method is effective in satellite constellation resource allocation. Compared with other algorithms, this method can make full use of the satellite constellation resources.