本文在大量野外实地调查基础上，通过对中尼公路沿线吹雪、积雪和雪崩成因背景的分析，揭示了中尼公路雪灾的分布规律和形成机制，并提出各类雪灾的防治对策。对康山桥特大雪崩灾害进行了深入研究，提出了可供实施的整治方案及进一步工作的建议，对中尼公路整治必建工程具有重要的指导意义。

Influenced by the high altitude of Mt. Himalaya, the warm and moist air current form the Indian Ocean Monsoon is blocked under the south slope of Mt, Himalaya and forms cyclone and mountain precipitation, a great deal of snowfall drops in the area from Mt, Nalongna to Zhangmu along the Sino - Nepalese Highway. It is investigated that 103.9km road is threatened by snow drift and accumulated snow cover, the maximum depth of snow reaches to 2.3m. There are 33 slope and gully type snow avalanches along Boqu River valley, among which Kangshanqiao Bridge snow avalanche is the largest and most dangerous to the highway. The snow hazards occur in the winter and spring season and generate huge damages to road, bridge, maintance squad, transportation and environment. The countermeasures such as enhancing roadbed height, construction anti - snow drift roadbed and snow avalanche shed, choosing a new route et al are suggested.