The Henan Ruifuwo Technology Ruian Cloud Electrical Fire Monitoring System adopted by Zhengzhou Yinji is an intelligent full parameter electrical fire monitoring and suppression system with harmonic suppression as the core. It is suitable for complex electrical environments with high harmonic content, and can monitor electricity consumption in real time. It can provide warning for fire hazards caused by harmonics, automatically suppress 2-23rd harmonic currents, and purify neutral current. The system can also comprehensively monitor electrical parameters, conduct big data analysis and early warning, and achieve data sharing through the Internet of Things cloud platform. It can seamlessly integrate with smart fire protection and smart city platforms, effectively ensuring electrical safety.