A measurement and control system for lithium electrode material graphitizing was designed on the basis of the platform of MCGS configuration software, RS485 bus and net technology and with an IPC used as the system host. The measurement and control system contains two 485 nodes. An electrical parameters collector was used to collect Rectifier Transformer's electrical parameters, and a controller was used to control Transformer gears. A second-order low-pass filter was designed on the basis of linear photoelectric coupling. The output voltage and output current of Rectifier and other signals were managed by a signal processing circuit and collected with Intelligent Data Acquisition card. An algorithm of the automatic control transformer gear was presented, which can match the set power curve in real time and implement the optimal control of the graphitization process. System host access the intranet through optical fiber, realizing the function of remote monitoring. This system has been put into use for more than one year, and the operating effect of more than 120 furnaces shows that the system is stable and easy to operate, the quality of product is stable and power consumption declines by 6%.