Abstract: From international cross-sectional comparison, it is found that China’s statutory retirement age is significantly lower than the average level of the Organization for Economic Cooperation and Development (OECD) countries, so implementing the reform of delayed retirement will definitely be the way for China’s pension system reform. Based on the comparative analysis of current retirement ages of OECD countries and the delayed retirement policies of various countries, the paper puts forward the following ideas. The delayed retirement scheme can retain a moderate gap between the retirement ages of men and women as a breakthrough in the reform, and it should reasonably set up flexible mechanisms such as early retirement, delayed retirement and classified retirement. The supporting mechanism of the delayed retirement should be designed to fully consider the legitimate rights and interests of workers, reduce their actual working hours, and reduce their workload. In addition, it is necessary to set different retirement ages between basic pensions and individual account pensions.