Intelligent expert system realizes the intelligence inspection, intelligence analysis and intelligent control of indicator and parameter in relation to the dense medium cyclone separation on the basis of Haiwang powerful industrial application expert database, which provides the high-efficiency and stable working of cyclone with strong intelligent support. This system can inspect the density of qualified suspending liquid, content of magnetic substance, coal slime content and product ash content etc paramters in real time, intelligently adjust the density of qualified medium suspending liquid, operation frequency of slurry pump, supplementary water flow of pump sump etc operation parameters and stabilize the density control system, pump sump liquid level and cyclone feeding pressure etc control parameters.