A generation method of particle simulation programs includes a translation and discretization process of equation of motion of particles for recognizing attributes of a space and particles based on information of the particle simulation to generate expressions of calculations, tables, and internal data and a generation process of programs for creating calculation programs and simulation input data from the generated expressions of calculations, tables, and internal data. According to information inputted from a screen of a graphic terminal, various control conditions are produced to control processes of the simulation.