The invention discloses an automatic amble quitting method of a mechanical vehicle, and belongs to the field of mechanical control. A vehicle-mounted controller 1, an amble switch and an inclination angle sensor 4 are arranged on the mechanical vehicle, wherein the amble switch and the inclination angle sensor 4 are respectively connected with the vehicle-mounted controller 1, and the vehicle-mounted controller 1 controls the mechanical vehicle to begin to amble. The automatic amble quitting method of the mechanical vehicle comprises the steps that the inclination angle sensor 4 detects the horizontal position parameter of the mechanical vehicle, the vehicle-mounted controller 1 collects the switch amount signals of the amble switch, and the vehicle-mounted controller 1 judges whether the mechanical vehicle begins to amble or not according to the horizontal position parameter and the switch amount signals. According to the technical scheme, the vehicle-mounted controller with an automatic control function has the advantages of being high in universality and high in efficiency, saving energy, reducing loads and the like, and can be used and popularized on equipment such as engineering machinery and traffic transportation vehicles.