The paper takes the maternity insurance system of Beijing as the research subject. By using the international comparison and reference method，the paper analyses the status quo of Beijing’s maternity insurance system firstly. Then，it compares Beijing’s maternity insurance system with the developed countries ’maternity insurance system，such as Germany，Britain and Japan. At last，on the basis of comparison，the paper considers enlarging the covering area of Being’s maternity insurance system，strengthening the government responsibility，setting childcare leave for father as the three key points of future reform of Beijing’s maternity insurance system.