Abstract: The greenbelt around a city is a green open space in the urban fringe that has the service functions of curbing the disorderly spread of construction land, protecting natural environment resources and maintaining regional biodiversity. As an important component of the greenbelt, the semi-natural habitat in the urban fringe has the characteristics of complex service potential and complex management problems, and affects the function of the greenbelt. Therefore, the research on the conservation of semi-natural habitats has some innovative significance. This paper clarifies the material basis of efficient supply of regional ecosystem services and the spatial requirements of the greenbelt around the city, and puts forward the planning strategy of integrating the current environmental resources, conforming to the natural ecological process, and combining protection and utilization, based on the theoretical and practical researches on the construction of the greenbelt around the city and the protection of semi-natural habitats in the fringe area. It aims to realize the continuous function output support of the greenbelt around a city and the systematic protection of the semi-natural habitat in the fringe area.