Based on the applying research of the theory of modal force method, a kindof assembly method, the main force method is put forward, Several examples arepresented which nearly represent all the normal linkage means of substructures.

Using multi-stage dynamic game model, the paper studies the strategic behaviors of members on the SC with production inflexibility and stochastic price and gets the probability and supply chain’s expecting profit of the three strategies that manufacturer purchases none, partly or all of the supplier’s stock in the condition of different anticipated price distribution.