Abstract: The article analyzes the supporting role of 10 kV electrical equipment protection and debugging in the stable operation of the intelligent power system and the coordinated control of the system. It summarizes the key technical contents from aspects such as protection setting value verification, action logic debugging, secondary circuit inspection, protection export test, communication coordination and automation function verification. It also discusses the specific applications of standardized debugging procedures, intelligent terminal linkage and debugging data analysis in on-site operations, fault handling and subsequent maintenance. The research shows that the standardized application of protection debugging technology can reduce problems such as protection failure to operate, incorrect operation and information transmission delay, enhance the fault identification, rapid tripping and operation feedback capabilities of 10 kV electrical equipment, and has practical significance for improving the protection system of the intelligent power system and enhancing the operational reliability of the distribution network.