Abstract:Based on data from the Chinese Floating Population's Dynamic Survey in 2013，this paper set up the simplified equation and structural equation of migrant workers'overwork choice，and analyze the influence of secondary vocational education on overwork of migrant workers.  The results  show that the improvement of  education level makes the probability of excessive labor of migrant workers decrease.  Compared to education in the ordinary high school，the migrant workers who receive secondary vocational education have a lower probability of overwork.  Secondary vocational education reduce the probability of the overwork of male migrant workers mainly by raising the skill levels and increase the work stability，and reduce the probability of the overwork of female migrant workers mainly by raising the female migrant workers' wages.  Therefore，the government department should focusing on the impact of secondary vocational education on employment of migrant workers. We can alleviate the overwork of  male migrant workers by increasing the depth of the secondary vocational education， and can alleviate the overwork of female migrant workers by enlarging the breadth of secondary vocational education. 

Key words:overwork;migrant workers;secondary vocational education