Beijing assumes different functions when it is measured on three different spatial scales：municipal，the Beijing-Tianjin-Hebei Region，and the country. As a national central city，Beijing experienced stable economic and social development in all areas at the municipal level in 2018；it effectively promoted the Beijing-Tianjin-Hebei collaboration at the Beijing-Tianjin-Hebei level；the status of Beijing as the “four centers” has been constantly increased at the national level. However，the capital is still stuck in the “dilemmas” such as lack of core supporting force in high-grade，precision and advanced industries，failure to properly respond to the impact of the special relief of non-capital functions actions，poor attractiveness of deputy urban center，and imperfect Beijing-Tianjin-Hebei coordinated development mechanism. High-quality development is the choice and inevitable requirement for the national central city construction of Beijing. To become a high-quality national central city in the future，Beijing should change the means of urban governance，promote the relief of non-capital functions in a people-oriented manner，enhance its radiating and driving capacity，and build innovative coordinated regional development mechanism until it gradually becomes a world-class harmonious and livable capital.