Abstract: OBJECTIVE To analysis and prediction of the suitable area for Psammosilene tunicoides and to provide the basis for the sustainable utilization of resources and the GAP standardized planting. METHODS The study through data compiled based on the CLIMEX ecological software, to prediction of the suitable area by climate and geography factors. RESULTS Yumen and Lanzhou in Gansu were the new suitable Psammosilene tunicoides area beside known area. CONCLUSION GAP base for Psammosilene tunicoides choose not only the known area also consider the suitable area, choose the red soil region on hillside or brushwood.