Delaying the retirement age has become an international trend. In recent years, with the worsening situation of China's population aging and the ongoing implementation of birth control policy, the scale of China's economic workforce has decelerated and the pressure on national pension payment has increased. In the last two years, delaying the retirement age has become a cynosure of society, and its implementation has faced with many difficulties. This essay seeks to apply labor measurement indices as reference bases such as participation rate of labor force, the ratio of aging population to working population and dependency ratio, and draws the conclusion that China's current retirement age system fails to accommodate the demand of a growing labor force market, therefore delaying the retirement age is indispensable.