The invention provides an intelligent protection system. The system comprises a core processing unit, wherein the core processing unit is respectively connected with an intelligent reactor protection device, an intelligent motor protection device, an intelligent transformer protection device, an intelligent capacitor protection device and an intelligent line protection device. The system realizes the switching of different protection devices by performing simple operation through an operation interface so as to realize three-sectional direction over-current protection, inverse time-lag over-current protection, zero-sequence current protection, negative phase sequence protection, over-voltage protection, under-voltage protection, zero-sequence voltage protection, over-heat protection, and reclosing and post acceleration protection of various types of electric equipment. Therefore, more and more comprehensive protection can be provided for the electric equipment.