(Anhui U nive rs ity of F inance and Econom ics, Anhui Bengbu 233041, China ) Abstract : The informal emp l oyment p lays more and more i mportant r ole in solving China’ s seri ous emp l oyment p roblems and becomes the main emp l oyment channel forweak group, and the peop le who have informal emp l oyment have become large - scale group.In the p rocess of economic transiti on and structural adjustment, some Chinese not only experience the p r ocess from unemployment to informal emp l oyment but also undergo the p r ocess from formal emp l oyment t o informal emp l oyment, which makes urban employment change fr om the decrease of the number of emp l oyees informal units t o the increase of the number of the emp l oyees in informal units and which shows that emp l oyment developstowards informal trends .