Moraine supplied-rainstorm debris flow is a unique geographical process that often can be seen in high elevation glacial margin area

the potential harm from the debr is flow has not be recognized enough because of its invisibility

and only a few researchers pay at tention to it.Based on the debris flow mechanism progress and the field survey

this article took Moxi Basin as an example

where distributed many moraine supplied-rain storm debris flow

and analyzed the forming factors and process

and presented the 4 steps of this debris flow process:branch water converging stepy individual particle material starting up stepy unde-rerosion and lateral erosion stepy debris flow initiationstep.F inally

this article summarized related problems about the mechanism of moraine supplied)rainstorm debris flow which need to be further studied.