Abstract: Human capital of working-age population is pivotal to sustain economic growth. In the critical period of China's economic transformation and upgrading, the realization of high-quality economic development endows human capital with new connotations. The advancement of human capital of working-age population should be realized through two aspects, that is, educational human capital and skilled human capital. According to data calculation and analysis,at present, the level as well as structure of educational human capital of China's working-age population have constantly improved. Besides, the stock of educational human capital has increased, with the urban population acting as the main driving force. At the same time, when it comes to the skilled human capital, the Internet-skilled and job-related skilled human capital of working-age population have risen significantly, but the possibilities of enhancing human capital through skills training vary among various industries. Therefore, for the sake of boosting the human capital of working-age population, it is necessary to continue increasing investment in education, give full play to the role of the government in skills training, facilitate inclusive sharing of basic public services in urban and rural areas, and coordinate the promotion of the revitalization of rural education and the rural revitalization through education, so as to accelerate the transformation of economic growth mode and propel high-quality development of economy.

Key words: working-age population, human capital, educational human capital, skilled human capital