Vehicle temperature control method, device and system

The invention provides a vehicle temperature control method, device and system. The vehicle temperature control method comprises the steps of: acquiring an operation mode instruction of vehicle temperature control; collecting battery temperature information of a vehicle battery; comparing the battery temperature information with a first preset temperature condition; and determining the temperatureadjustment ratio of a vehicle passenger compartment to the vehicle battery according to the comparison result. According to the vehicle temperature control method, the conveying proportion of a temperature control medium to the vehicle battery and the vehicle passenger compartment is controlled based on the battery temperature information, the comfort of the passenger compartment is considered, meanwhile, the working environment of the vehicle battery can be located in a reasonable temperature interval, the service life of the vehicle battery is prolonged, and the cruising ability and the charging and discharging eff