The invention relates to an AGV technology, and specifically relates to a low-cost energy-saving type wireless remote automatic starting and stopping device and method applied to an AGV. The device comprises a low-voltage battery, a microcontroller, a low-frequency wireless module and a relay which are newly added, and cooperation of an AGV power battery, a main controller and a high-frequency wireless module is needed to complete a design function together. The microcontroller and the main controller control the on-off of the relay according to a design requirement, remote control ignition type start and suicidal type stopping of the AGV are realized, push-pull type operation of two systems of the microcontroller and the main controller can be realized, and the capacity of the battery canbe saved. The device and method can be applicable to remote automatic starting and stopping of the AGV and especially applicable to scenes with a large quantity of AGVs in the same scene and scenes adopting time-consuming and labor-consuming manual starting and stopping. By adopting the device and method, the work efficiency can be substantially improved, the operation cost of users is reduced, and the market competitiveness of products of AGV manufactures is improved.