Helicopter CGF entity hoisting sonar submarine searching simulation method and device

The invention provides a simulation method and device for searching submarine by hanging sonar on a helicopter CGF entity, and the method comprises the steps: drawing a plurality of path points on a preset navigation route of the helicopter CGF entity, and determining the position information of each path point; based on the operating distance of the hanging sonar, a first detection point is inserted between the adjacent path points, the position information of the first detection point is determined, and the path points and the first detection point form a second detection point; in an external storage space of a maneuvering control model of the simulation development platform, a rotorcraft motion data descriptor is expanded and developed, and the position information of the second detection point is stored in the rotorcraft motion data descriptor; and sending a maneuvering instruction to the maneuvering physical model of the helicopter CGF entity based on the position information of the second detection poi