在长达756km的中尼公路上，分布有泥石流842处，其中坡面型的泥石流368处，沟谷型的泥石流474处。迷些泥石流给我国的国防、当地的经济建设和人民生活 带来了极大的困难。综合泥石流的分布规律，该线路上的泥石流可概括为3个区、5个段。全线不同水动力条件的泥石流类型有雨洪、冰雪消融、冰湖溃决和融冻型，其中雨洪型分布最广。全线不同性质的泥石流有水石流、稀性、稀偏粘性和粘性，其中稀性及稀偏粘性泥石流居多。 沿线分布的尼石流规模，除个别冰种类泥石流外，普遍偏小，其发生发展具有周期性演化的特点。在泥石流的活动状况及危害特征方面，该路段的泥石流表现为成群暴发，量小频高、量大频低，活动集中与偶发性相结合。

842 debris flow slopes and gullies are distributed along Sino-Nepal Highway, 756 km long, in which 368 are U-shape debris flow and 474 V-shape debris flow. This kind of hazard has caused great loss on national defense, local economic construction and people's daily life. Based on the distribution characters, the debris flow in this area can be grouped into 3 areas and 5 main zones. The debris flow is caused by rainfall, snow melting, ice lake flood and thawing along the highway, among which rainfall induced debris flow is widely distributed. The debris flow can be divided as slight viscous debris flow, moderate viscous debris flow and viscous debris flow in this area, the slight and moderate viscous debris flow take dominant. Along the highway most kinds of the debris flow are of small scale and develop periodically. On both sides of the highway the debris flow appears in group characterized by high discharge low frequency or high frequency low discharge.