Abstract: The scientific foundation of artificial weather modification is meso- and small-scale dynamics and cloud-precipitation microphysics. Artificial weather modification requires to realistically couple weather patterns, dynamical processes, and microphysical processes together. Now that the numerical models with weather dynamical characteristics have been widely applied to artificial weather modifications, some keys points, which must not be neglected, in developing specific numerical models for artificial weather modification are proposed, including dynamical equations, model resolution, cloud-precipitation microphysical processes, numerical computation method, and initial and boundary conditions. Based on several examples, approaches are proposed to deal with the problems. The key points are useful for developing specific numerical models for artificial weather modification. These key points, if considered in a numerical model, will make it further suitable for artificial weather modification.