Abstract: For a two-echelon supply chain composed of just a single supplier and buyer with decentralized channels in multi-cycle stochastic demand, its coordination was investigated analytically, where the dominant party is the supplier who decided to sell goods on the basis of consignment stock. The results revealed that such a supply chain can be modeled as a Stackelberg leader-follower game to which there is a unique equilibrium solution, and that in the decentralized game the supplier can design his consignment contract parameter, i.e., the wholesale price, thus enabling the buyer to maximize his own profit and, meanwhile, it maximizes supplier's profit as well as the supply chain optimized. It means that the consignment stock can completely coordinate the two-echelon supply chain in multi-cycle stochastic demand.