Electric vehicle thermal management system and vehicle

An electric vehicle thermal management system, comprising a water tank (), a liquid-gas separator (), a four-way valve (), a first water pump (), a second water pump (), a battery water jacket (), an electric appliance water jacket () which is simultaneously used for a voltage converter () and a vehicle-mounted charger (), a radiator (), a heat exchanger main body () of a battery cooler (), an electric motor controller water jacket () and/or an electric motor water jacket (). The four-way valve () comprises a first valve port, a second valve port, a third valve port and a fourth valve port. An outlet of the radiator () and the water tank () are both in communication with the first valve port. The second valve port, the heat exchanger main body (), the liquid-gas separator (), the first water pump (), the battery water jacket ().