Overall planning of endowment insurance refers to the unified management and distribution of endowment insurance expenses from different sources in order to realize the fairness and sustainability of endowment insurance system. This mechanism is produced to cope with the grim situation of China's aging population, ensure the living needs of retired elderly people and reduce their economic burden.

Generally speaking, the endowment insurance is a complete social security system, including the basic endowment insurance premium paid by individuals and the subsidy funds provided by the government. In practice, there will be some unfair factors because of the different payment standards of endowment insurance premiums in different regions and industries. Therefore, the introduction of pension insurance pooling fund can effectively solve these problems and ensure that everyone can enjoy the same treatment.

Although the pension insurance co-ordination mechanism has been fully implemented in China, it still faces many challenges in practice. The biggest problem is the funding gap, especially in first-tier cities and economically developed areas. The pension fund is large in scale and the gap is more prominent. Therefore, we need to constantly explore and absorb more financial resources, improve the rate of return of pension funds, further improve the overall mechanism of pension insurance, and truly realize a fair and sustainable pension insurance system.