Identifying key areas and implementing land consolidation and ecological restoration projects is an effective approach to improving regional ecological security. Effects assessment of pre-set projects can promote land consolidation and ecological restoration more pertinently. Taking Daguan County, Yunan Province, as the study area, the key areas of land consolidation and ecological restoration were identified by Circuit theory. Land consolidation and ecological restoration projects were pre-set according to the terrain’s suitability. Then, the ecological effects of the projects on the ecosystem were evaluated. The results showed that (1) a total of 12 ecological barrier points with an area of 37.16 km2 were identified as the key areas for land consolidation and ecological restoration. (2) Ecosystem services such as water and soil conservation, carbon storage, and habitat quality can be improved by implementing land consolidation and ecological restoration projects, respectively. (3) Projects in the middle of Daguan County that can improve comprehensive ecological effects should be prioritized, as more ecosystem service functions can be provided. It provides the decision-making reference for land consolidation and ecological restoration management.