This work is a study on modeling of concrete mix proportioning Although concrete in one of the most important materials for construction, its production system is not so well organized in comparison with other materials. The heterogeneous nature of concrete and concrete materials create numerous variables which influence the properties of fresh and hardened concrete. The relationships between the different variables are formulated into equations. The regression analysis was done by using the computer program of statistical analysis for engineers. A computer program was written for proportioning the different ingredients of concrete using the derived equations.