The embodiment of the application provides a detecting method, device and equipment for the temperature of a power module of converter, and a medium. The detecting method comprises the following steps: acquiring the temperature at a thermistor in the power module of the converter, the steady-state temperature difference between the thermistor and a heat conducting substrate in the power module, and operation parameters of a power chip in the power module; determining the real-time temperature difference between the power chip and the heat conducting substrate according to the operation parameters of the power chip; and determining the real-time temperature of the power chip according to the temperature at the thermistor, the steady-state temperature difference between the thermistor and the heat conducting substrate, and the real-time temperature difference between the power chip and the heat conducting substrate. Through the adoption of the embodiment of the application, the real-timetemperature of the power chip in the power module in the converter can be detected, and the detecting efficiency is improved.