All-terrain control method and system of automobile

The invention discloses an all-terrain control method and system of an automobile. The all-terrain control method of the automobile comprises the steps that power-assisted steering mode switching signals are obtained; and when the current traveling condition of the automobile meets the mode switching condition, power-assisted steering modes of the automobile are switched according to the power-assisted steering mode switching signals. According to the all-terrain control method and system of the automobile, the power-assisted steering modes of the automobile are switched according to operationof a driver to a multi-mode switch, so that the driver autonomously selects and switches the power-assisted steering modes; strategies adopted by all subsystems after switching are monitored througha control device of the all-terrain control system, and closed-loop control over the all-terrain control system is achieved; in addition, the power-assisted steering modes of the automobile are displayed through an IP (Instrum