The invention discloses an automotive antislip sand distributing system and a control method thereof. The automotive antiskid sand distributing system comprises a control unit, a controller and a sand distributing mechanism, and the control unit comprises a sand output amount regulating and controlling device and is used for setting the sand output amount of the sand distributing system; the controller is connected with the control unit, receives sand output amount data of the control unit and converts the sand output amount data into driving signals; the sand distributing mechanism is connected with the controller, receives the driving signals of the controller and controls the sand output amount. The sand distributing mechanism is mounted at the front end of the advancing direction of wheels. The automotive antiskid sand distributing system has the advantages that an automobile is prevented from slipping on an icy road surface, and driving is safer; the sand distributing system is not complex, easy to implement, convenient to install and suitable for large-scale application; the fuzzy PID controller is used for regulating and controlling the sand distributing system, the sand amount deviation is smaller than 0.2%, and the precision of the sand distributing system is greatly improved.