Abstract: On the basis of the hierarchical production system’s input-output model,this paper sets up an opti-mal model of sales structure,taking a polyamide fibre factory as application background.And based on the model,it discuss several decision-making and optimization problems of management about the optimization of sales structure,fixing products’prices,and finding enterprises’inner potential,etc.Successful practice is also included in this paper.

Key words: hierarchical production system, production and management, decision-making and optimization