Abstract: Based on the earth quality condition and basic method of geotechnical engineering, an impact imitating test bed of the spaceflight reture capsule is built. The material quality, parameter of construction technology and construction method is strict controlled in this building process which adopts field test data such as light dynamic penetration test, water content and dry density and little diameter load board experiment. According to thee methods, it can appraise the quality situation of testing bed in time, and realize informative control construction. Then the build quality of the bed is guaranteed. This research has an important meaning in science and technology field of our country national defenee.