Abstract: Considering the effects of trade credit financing on supplier and retailer target profits respectively and total profits of supply chain， and starting from the traditional market， the effect of revenue sharing mechanism based on trade credit for supply chain coordination and distributing the profit was analyzed. The model of emarket revenue sharing contract coordination based on trade credit was developed and the optimal contract parameters for rational allocation of income were derived. Considering the impact that credit period imposed on optimal parameters， by comparing the coordination mechanism in traditional market and emarket， sufficient conditions were got for supply chain members to enter emarkets and to realize the rational allocation of income. Finally， the conclusions were illustrated by a numerical example.

Key words: emarket, supply chain, trade credit, revenue sharing, coordination