Abstract: The integrated defence system for the important targets on the sea is composed of multilayer interceptors and soft defence means. In order to attack the targets effectively, the antiship missile must get through the integrated defence system safely. Corresponding penetration maneuver is adopted according to the various defence means used by the ship. Security trajectory or porpoise maneuver is adopted in the penetration process to the long-distance interceptor.To penetrate the short range missile, the snaking type maneuver or a new maneuver method-random maneuver is proposed. To evade the cannon on the warship, trajectory of goat-jump is proposed. Furthermore, Pattern recognition of the point target behavior is used to the soft defence of the warship. For the various penetration strategies and the integrated penetration strategy, the design plan and the parameter selecting principle are given. And finally, the multifarious penetration strategies and the integrated penetration strategy are validated by statistic simulation results.