Abstract: As the capital’s sub-center, Tongzhou District will undertake the function of orderly alleviating the population and function burdens of the downtown areas, and strictly control its land use and population size following the rigid constraint of resource environment bearing capacity of the district, so as to achieve coordinated development of the city and the ecological environment. This thesis analyzes the land transformation from 2008 to 2013 and from 2013 to 2018, and evaluates the habitat quality of Tongzhou District with the InVEST model. The result shows that the low habitat quality improved from 2008 to 2018, mainly due to the land use transformation from woods, meadow, water area and arable land to construction land, which led to the decline of the high habitat quality that was mainly based on woods and water areas from 2013 to 2018, and to the decrease in the proportion of general habitat quality which was dominated by arable land from 2008 to 2018. Along with the implementation of the “Million-Mu Afforestation Project” in recent years, Tongzhou District has adopted the “Two Belts, One Ring, and One Core” green spatial structure to comprehensively promote the greening of the paths along the river as well as the construction of the eastern and western ecological green belts and the southeastern forested wetland clusters. These measures have ultimately contributed to the optimization of the habitat quality in Tongzhou District. The research result will provide reference for urban planning and construction of landscape and habitat protection in Tongzhou District.