The relationship between labor supply and demand is the major factor which affects employment situation. Analyzing and forecasting the medium-term and long-term labor supply is an important basis for government’s macroeconomic decisions as well as a prerequisite for grasping major issues in economic operation. By analyzing the data of the 7th National Population Census and other historical figures，this paper concludes that the total labor force in Sichuan from 2010 to 2020 is decreasing，mainly in rural areas while increasing in urban areas. Besides，by analyzing provincial labor force changes，it is obvious that labor force tends to gather in Chengdu. The aging of labor force is apparent and particularly acute in rural areas. The quality of the labor force has been further improved. The growth rate of total labor force transferred from rural areas tends to slow down with the employment of migrant workers increasing continuously. Furthermore，combined with economic development，it is noted that the working age population in Sichuan will continue to decrease in the next decade with rural labor force downsizing continuously while urban labor force growing steadily. The labor force supply is still sufficient，but the aging trend is further enhanced. Economically active population is decreasing，and the degree of reduction is greater than that of the working age population. Eventually，this paper proposes to vigorously implement the employment priority policy，stabilize employment situation，take comprehensive measures to alleviate structural employment contradictions between urban and rural areas，promote the employment transfer of rural labor force through multiple channels，and pay attention to the development and utilization of aging labor resources.