In view of existing situation of non-constant consumption speed in equipment mobilization, in order to realize tow key optimization targets which are minimum quantity of material supply enterprises and commence production in advance, the double-layer plan model for selection of material supply enterprises is set up. The concrete solving process for this model is given, then check the result of this model against others. It shows that through application of the model equipment mobilization will be succeeded by material supply enterprises of minimum quantity quickly and economically.