Whether the profit allocation in supply chain is reasonable or not has a strong impact on efficiency and endurance of supply chain,the cooperative risk of supply chain is noted on allocation model of Shapley value,according to risk factor the Shapley value is improved,at last the improved Shapley value algorithm is applied to resolve the profit allocation in supply chain.This allocation is the promotion of model of the original value of shapley,can be used as supply chain enterprises to participate in an in...