The aimed of this research to analyzed the risk area of Khok Khaw forest invasive for 1) to study the land use changes 2) to study the risk area of invasive forest and, 3) analysis of factors affecting forest invasive by using GIS techniques for data analysis and study the areas at risk of being compromised. Found that land use changes in Khok Khaw forest at the radius of one kilometer in the last 10 years, in year 2538, 2548 and 2558 BE. The forest degradation 38%, 21% and 3% respectively. Because the establishment of forest escort. The study analyzed the relationship with physical factors such as distance from villages, distance from water and distance from road and Contour The areas at risk of being compromised found that 3 levels, such as 1) High risk area 2) Moderate risk area and 3) Low risk area. The total area is 19.78, 102.19 and 97.50 Km2 respectively. The results can be used for plan and management this area, and can be applied to others area.