In order to improve the quality and efficiency of boiler water treatment in power plants,and assure that the boiler runs safely and economically,Modicon TSX Micro system is used as the core of the real-time control.The upper monitor of the control system is realized by using Eview MT500 series touching screen and Easy Builder 500 software programming,composing the automatic control system for the boiler make-up water treatment process in the whole power plant.In order to improve the robustness and adaptability of the whole system,the intelligent control based on neural network is introduced to some crucial links.Through the spot debugging,this system has achieved all the controlling requirement satisfactorily,increased the producing efficiency greatly,and has been running successfully.