In this paper, the dynamic input-output model is discussed.The control system of this model is built by selection per period production increments as the control variables.It is simple and useful.

• 摘要本文采用各期各部门生产量的增量为控制变量，构造动态投入产出模型的控制系统，使所建立的控制系统实际意义具体、对原模型无特别的要求、能减少各种有关运算。