Novel three-flat rocket testing and launching mode

The invention provides a novel three-level rocket test-launch mode, which comprises the following steps of: completing a rocket body general assembly in a horizontal state, and testing the rocket body in the horizontal state; the fairing is closed in the vertical state to form a star cover assembly, and the star cover assembly is tested in the vertical state; the rocket body assembly is horizontally hoisted to an integrated transferring and erecting vehicle, and the rocket body assembly is horizontally transferred to a launching platform through the integrated transferring and erecting vehicle; the star cover assembly is vertically hoisted to an air conditioner guarantee vehicle, and the star cover assembly is vertically transferred to the launching platform through the air conditioner guarantee vehicle; the integrated transfer erecting vehicle is in positioning butt joint with a launching pad, and the rocket body assembly is erected; and the star cover assembly is vertically hoisted through a crane on the se