[Objective] The intensity of spatial conflicts was measured and ways to strengthen the management of territorial space conflicts were determined at county scale, and the utilization of territorial space was optimized in different regions in order to provide new ideas for the sustainable development and utilization of territorial space at the county level.[Methods] Taking Yihuang County in Jiangxi Province for example, the three methods of landscape ecological index model, exploitable intensity analysis, and land use status and suitability evaluation were used in conjunction with guidance provided from the comprehensive perspective of "grasp landscape pattern-clarify development intensity-determine suitability-realize function optimization" to construct a comprehensive spatial conflict measurement model. Impact type areas with significant spatial conflicts coupled with regional bases at the township scale were identified, and functional optimization measures were proposed.[Results] ① At Yihuang County from 2010 to 2020, urbanization expanded and the accommodation degree of ecological space declined. The main change trend was that the agricultural production space and ecological space were transferred to the industrial and mining production space and the urban living space. ② From 2010 to 2020, the intensity of regional conflicts intensified, and there were significant differences in intensity and distribution in different periods and regions. The controllable space was mainly located in the southern part of the study area. The mild and moderate conflicts were evenly distributed in the region. The severe conflicts were mainly located in the northern, central, and eastern areas. ③ According to the analysis of development intensity and the causes of conflict, the towns and villages could be divided into three categories:disadvantaged areas of terrain development, intensive areas of urban development, and concentrated areas of nature protection, which are the key points of spatial function optimization; ④ At the township scale, there were differences in the distribution of spatial conflict types, and the conflict areas followed the order of agricultural space and ecological space conflict > urban space and ecological space conflict > urban space conflict > agricultural space conflict; ⑤ From the comprehensive conflict measurement model, it can be concluded that there were eight kinds of comprehensive conflict combinations within the region, which could be divided into five conflict types after merging:disorderly urban expansion, urban scale expansion, improper urban planning, overall development lag and urban development lag.[Conclusion] The intensity of spatial conflicts in Yihuang County increased during 2010 to 2020, and regional ecological security and food security were constantly challenged. Therefore, regional control of spatial conflicts should be strengthened to optimize the development and utilization of regional territorial space resources.