Abstract: By analyzing the decision course of railwaytransport products undermarket economy, The model that is determined by the objective of maximum benefit under the equilibrium of supply and demand has- been obtained. Solving the model, the sorts, quantity and optimum route of transport supply (products) should be ascertainable. Under control of total cost, the price and class of transport products can be ad- justable. Onlyresolvingmethod is decomposition algorithmbecause the model is a big problem,and the ide- al of two kinds of algorithm are offered.the model should have a directive function because it is correspond to the actual case of the market of railway transport.