During the “14th Five-Year Plan” period, the primary principle that must be followed in China’s economic and social development is to uphold the party’s overall leadership. It is based on the fact that the Party’s leadership over all work is the fundamental foundation for all our undertakings, provides preconditions for economic and social development such as political stability, social progress, national unity, and cultural prosperity, a political process that runs through the entire process of economic and social development in various historical periods, and the fundamental guarantee for the complex situation facing my country’s economic and social development during the “14th Five-Year Plan” period. To uphold and improve the institutions and mechanisms for the Party’s overall leadership over economic and social development during the 14th Five-Year Plan period, it is necessary to implement the “two maintenance” requirements in all areas of economic and social development, give full play to the party’s role as the core of leadership in overseeing the overall economic and social development and coordinating all parties, uphold and strengthen the socialist system with Chinese characteristics, strengthen the construction of the party’s rigorous organizational system, inherit and develop the party’s scientific system for leading economic and social development. To continuously improve the party’s ability to promote economic and social development during the “14th Five-Year Plan” period, it is necessary to continuously improve the party’s political ability to lead economic and social development, the ability to systematically promote economic and social development, the ability to lead economic and social work in a scientific and legal manner and the ability to promote high-quality economic and social development with the party’s high-quality construction.