At present, there is a contradiction between total unemployment and structural unemployment in the employment market of college students in China. On the one hand, there is a phenomenon that the supply of college students exceeds demand brought about by economic growth; On the other hand, in the process of economic system reform and industrial structure adjustment, due to the unreasonable professional structure and regional structure, college students' own knowledge structure can not meet the market demand, and the employment market and employment mechanism of college graduates are imperfect, resulting in structural unemployment and increasing the difficulty of college students' employment. The improvement of college students' employment needs the coordination and cooperation among college students, markets and universities under the macro-control of the government.