The Article introduces a set of synchronous measurement system for the ground scattering characteristics which is based on the G language development environment and takes laser range finder and power meter as the external acquisition equipment . The system that contains the information processing part for the power of radiated field and the height of receiving antenna can give the ground scattering coefficients quickly and high precision. In order to verify the reliability of this system, the experiment for ground scattering has been carried out. The results show that measured scattering coefficients agree with the given model.