In order to rationally utilize and scientifically absorb the abandoned area of engineering construction and realize the preservation and appreciation of natural capital, GIS technology and big data of survey information are introduced into the management of soil and rock of engineering construction in mountainous cities based on three-dimensional geographic information environment, and a scientific method of disposal of abandoned area of engineering construction is proposed. Using the methods of field observation, literature investigation and interview investigation, this paper puts forward the ways and methods of earth and rock resource utilization, realizing the resource utilization of earth and rock waste generated by traditional engineering and turning "waste" into treasure. Taking Beibei District of Chongqing City as an example, in the preparation of territorial spatial planning, we carry out the exploration and practice of the special planning of the resource utilization of earth and stone, analyze the classification and value and benefit of the resource utilization of earth and stone, and plan the site selection of the storage site in combination with the ecological restoration of the mine, so as to give full play to the role of territorial spatial planning in guiding, restricting and guaranteeing the implementation of the project, and realize the intensive and efficient use of earth and stone resources.