The invention belongs to the technical field of software application, and provides an automobile control method and device and a terminal device. The automobile control method comprises the steps thatwhen a vehicle using instruction is received, a temperature of a preset part is detected by a temperature sensor, and whether the temperature of the preset part meets a preset temperature adjustmentstandard or not is determined; and when the temperature of the preset part meets the preset temperature adjustment standard, a temperature control system is started to perform temperature adjustment operation. The automobile control method and device and the terminal device can solve the problem that in an existing vehicle using scheme, the vehicle using experience of a user is affected due to thefact that the user needs to manually start the temperature control system and wait for a period of time after boarding when the vehicle conditions are affected by the environment.