Aiming at the problem of firepower and target distribution efficiency in the cooperative operation of multiple firepower equipment in the process of amphibious operations, according to the damage effect evaluation of each firepower equipment, the threat degree of the target to be hit is evaluated by battlefield information. A mathematical model with the objective function of maximizing damage income is established. The basic objective function and constraint conditions of the firepower collaborative planning problem are expounded, the simulated annealing algorithm is used to solve the model, the process of generating a new solution of the simulated annealing algorithm is improved, and the Matlab simulation analysis is carried out through a case. The results show that the model is feasible and effective.