Abstract:During the cold season in most regions of China, the wind sensors of automatic weather stations on the ground are easy to freeze, which affects the quality of observation data. Especially for remote and unguarded regional stations, the maintenance is difficult and the impact time is long. In order to solve this problem, a technical idea of wind sensor anti-freezing device was put forward. The design tests were carried out from the aspects of the structure, function module and intelligent heating control of the intelligent anti-freezing device. Combined with a freezing rain weather process test in the field, CIMISS data is applied to test. The results show that the wind sensor antifreeze device is an important measure to ensure the integrity and continuity of the wind observation data in winter, and has wide application value for the anti-freeze of the wind sensor in the weather station and the ground wind observation station of the wind power plant.