Because the current situation of manual observations of electric wire with ice accretion is a body of work, inefficient and low accurately, moreover the recorded data are discontinuous and realtime poorly, it is proposed that the monitoring system of the electric wire with ice accretion is built on the frame of electric wire used in the meteorological technical standards. The system not only measures in real time and displays the weight of ice accretion, but also has the ability of waterproofing, freezeproofing, easytoassemble and so on. After the performance test in Weining County of Guizhou Province, the system is able to monitor the continuous data of ice accretion weight, and achieves the expected objective. This is helpful for reducing labor intensity and increasing the observation efficiency.