The application relates to the technical field of star car, and discloses a four-wheel high-speed star car and a working method thereof. The four-wheel high-speed star car comprises a car body, a car body differential mechanism located at the front part of the car body and fixed between the car body, a front
rocker arm mode conversion mechanism located at the front end of the car body and connected to a rotating shaft one of the car body differential mechanism, a rear
rocker arm terrain adaptation mechanism located at the rear part of the car body and connected to a rotating shaft two of the car body differential mechanism, and a wheel set comprising a front wheel set and a rear wheel set, wherein the front wheel set is installed on the front
rocker arm, the rear wheel set is installed on the rear rocker arm, and the rear rocker arm is extended out of the car body through a car body through hole three formed at the rear end of the car body. The application has good
terrain adaptability and buffering and damping performance, can adapt to high-speed driving on a
planetary surface, and can actively control the car
body posture and switch various working
modes through the combination of regulation and control
modes, so that new or special detection tasks can be better completed.