Abstract: In order to solve the problem that there is no scientific basis for the deployment of ice-covered monitoring terminals, this paper analyzes 314 locations of ice-covered monitoring terminals in Guizhou power grid and evaluates their rationality. According to the selected 12 important evaluation indexes, the subjective and objective “Two-step”principle is adopted to calculate the weight of the 12 index factors, and based on this, the comprehensive evaluation model of the index weight is established, the integrated scores of the deployment positions of each monitoring terminal are calculated. According to the principle of 2% probability, a total of 25 irrationally deployed terminals were extracted, and the nearest water body distance between the 21 terminals and the tower was more than 4 km, all of them are located on leeward slope, the maximum ice cover ratio of the other four terminals is less than 0.15, and the ice cover is light, which proves that the comprehensive evaluation model of ice cover monitoring terminal deployment position is reasonable.