A genetic algorithm based path planning method is proposed to solve the collision avoidance planning problem of multiple carrier-based aircrafts in complex environment. The problem of multi-machine simultaneous transshipment is analyzed, and the objective function and constraints are designed; the calculation formula of carrier-based aircraft collision detection, the stop-waiting strategy and re-planning strategy based on traffic rules, and the non-uniform ration B spline (NURBS) smoothing strategy are established; the simultaneous transfer scenarios of different numbers of carrier-based aircraft are simulated by genetic algorithm. The simulation results show that the method can effectively plan the transfer path in the complex environment with good reliability and airworthiness, and can provide a scientific and effective decision-making method for the multi-aircraft shipboard simultaneous transfer.