A simplified explicit scheme of phase mixed cloud and precipitation for weather forecast model is described, in which two variables, cloud water content and precipitation content (rain in warm region and ice in cold region) are calculated, respectively, and 7 kinds of microphysical processes are considered. The detailed system of equations is give, which can be used as a subroutine for macro and mesoscale weather model. The case studies of the new explicit scheme are made for comparison with warm cloud scheme and comprehensive phase mixed cloud scheme