Traditional surface exposure methods, such as trenching and exploratory shaft sinking, have their own limitations and are harmful to the environment. The paper puts forward the technical route of research on drilling instead of trenching and summarizes the shallow drilling methods and drilling arrangement technology; and at the same time, explores the three-dimensional geology modeling based on borehole data. The technical achievement of drilling instead of trenching is popularized and applied in Tibet and some other places and is verified to be feasible and effective.