Abstract: As urbanization is advanced rapidly, It is of great practical significance to study engineering geological Problems of Projects for how to map out the city's plan and carry out its construction on a rational basis,such significances include coordinating development between construction and environmental protection, effectively controling developing cost. With the technological projects of my instite in the field such as Geotechnical Engineering, Geological Hazards, Hydrogeology and Engineering Geology,Geological Survey,and by collecting and utilizing predecessor's data,the article summarizes the geological problems of projects on special soil in Kunming city.