The core area of landscape is extracted based on MSPA method, the extremely important area of ecological protection is extracted based on ecological evaluation, and the ecological source area of Ningming County is extracted after superposition and correction of artificial commercial forest, ecological protection red line, public security Headwater conservation area and other elements. Then the ecological security pattern of Ningming County is preliminarily formed by combining other ecological land, non-ecological land and the minimum accumulation model. By optimizing the spatial layout of ecological security pattern, the ecological security pattern of "one axis, three cores and five regions" was formed, and relevant spatial development suggestions are put forward to provide reference for local development.