In order to describe the vertical field which is engendered by temperature effect of earth surface, the basic soil particles release model of starting-up, rolling motion and saltation of soil particles is established in this paper. At the same time, the numerical calculation results of the model are good agreement with predecessors’ experimental results, which indicates the model of this paper is appropriate. The results show that with the particle diameter enlarging the threshold wind velocity weakens and then enlarges, and when the particle diameter is between 0.12 mm and 0.14 mm, the particle is the easier to start up. At the meantime, the higher the bed temperature is, the weaker the particles’ threshold wind velocity is.