Detection method of heat pump system and heat pump system

The invention relates to the technical field of heat pumps, and particularly provides a detection method of a heat pump system and the heat pump system. The objective of the invention is to solve the problem of low detection efficiency during operation testing of a heat pump system in the prior art. In order to achieve the purpose, the detection method of the heat pump system comprises the steps that after a detection command is received, a refrigeration mode is executed, so that a first heat exchanger absorbs heat; after the refrigeration mode is finished, the heating mode is executed; acquiring operation parameters when the refrigeration mode and the heating mode are operated; and judging whether the detection result of the heat pump system is qualified or not based on the operation parameters. According to the detection method, the air is used in the water side heat exchanger, the refrigeration mode is executed firstly, then the heating mode is executed, the air is made to naturally circulate, meanwhile, t