Abstract: By the principle of System Dynamics,and PD plus software,the author studied exploratorily the microcomputeri-zation of the broiler production. Since the standpoint of the model establishment lies in the change in scale of the broiler production an unbalanced development, The author emphasizes the system definition and the design of the flow blook of the system feedback machanism. This course is based on the internal feedback structure. At the end,the model efficiency is tested inside and outside.