With the development of the internet of things technology, how to combine the internet of things technology with nonintrusive power equipment operation monitoring technology have become a hot research topic. In order to explore a new mode of monitoring the running state of electrical equipment based on internet of things technology, the nonintrusive online monitoring of the stator winding temperature of induction motor was taken as the starting point. Firstly, a method of identifying the stator winding temperature of induction motor based on adaptive method and least squares method was proposed. Combined with the development of the current internet of things technology, a life cycle monitoring system for induction motor stator winding temperature based on whole process monitoring technology was designed. The stator temperature monitoring system based on induction motor life cycle monitoring was tested on a 5.5 kW induction motor. The results show that the system has strong robustness. The concept and technology presented can provide important reference and technical support for condition monitoring of other large power equipment.