The invention provides an automatic catch vehicle shifter accidentally-engaging prevention method. According to the method, an R gear locking electromagnetic valve and a D gear locking electromagnetic valve are arranged in a transmission. An electromagnetic valve control system comprises a microprocessor, a brake switch, a gear sensor, a vehicle speed sensor, an engine running state sensor, a timer and a comparator, wherein the brake switch, the gear sensor, the vehicle speed sensor, the engine running state sensor, the timer and the comparator are connected with the microprocessor. The starting terminal and the output terminal of the timer are connected with different I / O ports of the microprocessor, the reset terminal of the timer is connected with the brake switch, the two input terminals of the comparator are connected with output signals of the vehicle speed sensor and vehicle speed threshold signals respectively, the output terminal of the comparator is connected with the I / O ports of the microprocessor, in the running process, the microprocessor controls the two electromagnetic valves to be opened or closed according to input signals of all the I / O ports, and therefore the accidentally-engaging prevention purpose is achieved. According to the automatic catch vehicle shifter accidentally-engaging prevention method, misoperation harmful to the transmission can be avoided, security threats of the accidentally-engaging operation of a shifter to the transmission are completely eliminated, and normal running of a vehicle is guaranteed.