Abstract:The measurement of power line icing is very important for the power supply in winter. In this paper, the measurement error will be generated when the laser ranging method is used to measure the distance in the process of line icing measurement. The error in the measurement process of power line icing is analyzed and studied through experiments to further determine the error factors. Then, the related error influencing factors are sorted out, the xgboost algorithm is used to optimize the calculation model of laser ranging, and the error is corrected reasonably. Finally, the distance measurement accuracy of laser ranging instrument in the process of power line ice covering measurement is improved.