The problem of employment inequality between men and women has existed for a long time, and the reasons for this result are very complex. With the proposal of the three child policy, women's employment difficulties and gender differences in employment have been widely concerned again. This paper uses the data of China's industrial census database in 2004 to analyze women's employment difficulties and gender differences in employment. The results show that the gender gap in employment is related to the region and the type of industry, and some policy suggestions are put forward to promote women's employment.