A new method is presented to measure aerosol scattering phase function and visibility, and an experimental system which uses semiconductor laser as the light source and charge coupled device (CCD) as the detector of scattering light is constructed. The grey level of 15°~45° distribution is measured by the system. The aerosol scattering phase function is fitted and the atmospheric visibility is calculated based on the method. The results have good agreement with the results of POM sky radiometer and Belfort visibility meter, and this method is feasible to measure aerosol scattering phase function and visibility.