In order to make the aircraft carrier formation keeping the maximum survival probability in the breakthrough during the flight, the aircraft get a different degree of threat, obstacle avoidance and path planning problems. Put forward a kind of initial path mapping method which is different from the V diagram. Through ant algorithm, acquired obstacle avoidance method of carrier based aircraft in model, and obstacle avoidance route in the same threat degree and different threats, then carried out simulation verification. The simulation results show that the optimal method of obstacle avoidance route can effectively solve the problem of V only planning on the same threat of the balance in the two issue of the threat degree and distance, can be further generalized to multi aircraft cooperative path planning for different threats, provides a theoretical basis for the problem of path planning for ship borne in the process of flight.