The invention discloses a vehicle temperature control system based on a cab. The vehicle temperature control system based on the cab comprises a seat cushion temperature sensor, an interior temperature sensor, an exterior temperature sensor, a wireless transmitter, a control instruction module and a temperature control module, wherein data transmission is performed among the seat cushion temperature sensor, the interior temperature sensor, the exterior temperature sensor, the wireless transmitter, the control instruction module and the temperature control module; the seat cushion temperature sensor is used for detecting the temperature of a seat cushion of the cab and transmitting the temperature of the seat cushion to the wireless transmitter; the interior temperature sensor is used for detecting the temperature of air within the cab and transmitting the temperature in the cab to the wireless transmitter; the exterior temperature sensor is used for detecting exterior environment temperature and transmitting the detected temperature to the wireless transmitter; the wireless transmitter is used for transmitting obtained detection results to the control instruction module in a wireless manner; the control instruction module is used for processing detection data transmitted by the wireless transmitter and transmitting an instruction signal to the temperature control module; and the temperature control module is used for controlling the temperature of the cab.