Abstract: The optimal reuse of abandoned mining land is of great practical significance to construct and expand the space that required by the transformation of resource-based towns in China. Taking Mentougou District of Beijing as an example, the 3S technology and field research were integrated to analyze the type, area, distribution, reuse status, as well as the temporal and spatial changes of abandoned mining land. A dynamic environment model of geographical process (Dinamica EGO) was used to simulate the reuse pattern of abandoned mining land under the trend development scenario. The appropriateness of abandoned mining land was evaluated to reuse for the ecological agriculture, ecological tourism, and high-tech industry under the functional positioning of "Capital ecological conservation development area" of Mentougou District using principal component analysis and BP neural network. According to the suitability evaluation and the land needs of industrial transformation, the land conversion rules were established to optimize the quantitative structure using the linear niche programming model and constraint conditions. Dinamica EGO model was then used to optimize the spatial pattern of the abandoned mining land that reused for the industrial transformation. Regulation was conducted to compare the optimization pattern with the trend development. The results showed were as follows: 1) A total of 323.30 hm2 of abandoned mining land was reused in the study area from 2006 to 2018. The abandoned mining land in the western towns was mainly reused as the woodland, cultivated land and orchards, while the abandoned mining land in eastern towns was mainly reused as the woodland, park, residential, and high-tech industrial land. 2) In the trend development scenario pattern, the abandoned mining land reused as ecological agricultural land was mainly distributed in Miaofengshan and Tanzhesi Town, the ecological tourism industry was mainly distributed in Datai Street and Wangping Town, and the high-tech industrial land was in Datai Street and Junzhuang Town. In the optimized pattern of abandoned mining land reuse for the industrial transformation, the area of abandoned mining land reused as the ecological agriculture was 251.75 hm2, mainly concentrated in Junzhuang, and Wangping Town, the reused area of the ecotourism was 64.25 hm2 in Miaofengshan, and Qingshui Town, and the area as the high-tech industry was 84.25 hm2 in Wangping and Miaofengshan Town. 3) In the two scenarios, about 108.5 hm2 of abandoned mining land was reused for the same purpose, indicating no adjustment to need. About 63.75 hm2 of abandoned mining land was reused as the ecological tourism land under the trend development scenario, which should be adjusted to the ecological agriculture land. By contrast, the ecological agriculture land was about 61 hm2 of abandoned mining land under the trend development scenario, which should be adjusted to the ecological tourism land. There was the 12.5 hm2 abandoned mining land should be developed into the high-tech industrial land in the Miaofeng Mountain, Wangping, and Yongding Town, according to the local infrastructure. Consequently, the direct and substantial combination were realized for the reuse of abandoned mine land and the demand for the industrial transformation of mineral resource-based towns. The findings can provide the theoretical support for the reuse and regulation of local abandoned mine land.