A vehicle thermal management system, comprising: a first coolant loop, wherein a first water pump, a motor, and a radiator are provided in the first coolant loop; a second coolant loop, wherein a second water pump, a battery, and a first heat exchanger are provided in the second coolant loop, and the first heat exchanger is further located in a refrigerant flow path of an air conditioning system of a vehicle; and a first flow path and a second flow path, wherein one end of the first flow path is connected to a coolant outlet of the motor, and the other end is connected to a coolant inlet of the first heat exchanger, and one end of the second flow path is connected to a coolant outlet of the first heat exchanger and the other end is connected to a coolant inlet of the first water pump, whereby, in a motor-waste-heat-recovery mode, the vehicle thermal management system is capable of heating a refrigerant in the refrigerant flow path by using heat of the motor; wherein a first switching valve is provided between the coolant outlet of the motor and the coolant inlet of the first heat exchanger, and a second switching valve is provided between the coolant outlet of the first heat exchanger and the coolant inlet of the first water pump, whereby, in the motor-waste-heat-recovery mode, the vehicle thermal management system is capable of providing a flow path of a coolant: the first water pump → the motor → the first switching valve → the first heat exchanger → the second switching valve → the first water pump; characterized in that the vehicle thermal management system further comprises a first three-way valve, a second three-way valve, a third flow path and a fourth flow path; both of the first three-way valve and the second three-way valve are provided in the second coolant loop and are located at a coolant inlet side and a coolant outlet side of the first heat exchanger, respectively, one remaining port of the first three-way valve is connected to the first coolant loop via the third flow path, and one remaining port of the second three-way valve is connected to the first coolant loop via the fourth flow path; and a connection point of the fourth flow path and the first coolant loop and a connection point of the third flow path and the first coolant loop are located on a coolant inlet side and a coolant outlet side of the motor, respectively, whereby the vehicle thermal management system is capable of heating the battery by using heat of the motor, or cooling the battery by using the radiator. a first coolant loop, wherein a first water pump, a motor, and a radiator are provided in the first coolant loop; a second coolant loop, wherein a second water pump, a battery, and a first heat exchanger are provided in the second coolant loop, and the first heat exchanger is further located in a refrigerant flow path of an air conditioning system of a vehicle; and a first flow path and a second flow path, wherein one end of the first flow path is connected to a coolant outlet of the motor, and the other end is connected to a coolant inlet of the first heat exchanger, and one end of the second flow path is connected to a coolant outlet of the first heat exchanger and the other end is connected to a coolant inlet of the first water pump, whereby, in a motor-waste-heat-recovery mode, the vehicle thermal management system is capable of heating a refrigerant in the refrigerant flow path by using heat of the motor; wherein a first switching valve is provided between the coolant outlet of the motor and the coolant inlet of the first heat exchanger, and a second switching valve is provided between the coolant outlet of the first heat exchanger and the coolant inlet of the first water pump, whereby, in the motor-waste-heat-recovery mode, the vehicle thermal management system is capable of providing a flow path of a coolant: the first water pump → the motor → the first switching valve → the first heat exchanger → the second switching valve → the first water pump; characterized in that the vehicle thermal management system further comprises a first three-way valve, a second three-way valve, a third flow path and a fourth flow path; both of the first three-way valve and the second three-way valve are provided in the second coolant loop and are located at a coolant inlet side and a coolant outlet side of the first heat exchanger, respectively, one remaining port of the first three-way valve is connected to the first coolant loop via the third flow path, and one remaining port of the second three-way valve is connected to the first coolant loop via the fourth flow path; and a connection point of the fourth flow path and the first coolant loop and a connection point of the third flow path and the first coolant loop are located on a coolant inlet side and a coolant outlet side of the motor, respectively, whereby the vehicle thermal management system is capable of heating the battery by using heat of the motor, or cooling the battery by using the radiator.