Grounding on the strategies of assisting the poor and sustainable development, the paper summarizes the benefits, experiences and problems caused by the specific way of assisting the poor, i.e. migration, and makes further studies. Migration of the poor is an effective way to leading the rural poor in Guizhou province to get rid of poverty and to developing. Combining with the specific situations in Guizhou province, the author proposes opinions on how to settle the poor migrants down and security measures.