Abstract: In view of the effects of anti-risk ability of cooperative enterprises and decision makers’ risk preferences on supply chain optimization and coordination， a concept named conditional optimistic expected profit was proposed and a power supply chain optimization and coordination mechanism with comparatively strong anti-risk abilities was introduced for further studies. First， under random demands， the conditional optimistic expected profit model of power supply chain and the optimal ordering quantity model as well as the revenue-sharing contract model based on conditional optimistic expected profit were constructed. Then， the models were analyzed with an aim to revealing the impact of suppliers’ and retailers’ anti-risk capability on supply chain coordination， the optimal ordering quantity and wholesale price， and the stability of supply chain cooperation.

Key words: conditional optimistic expected profit (CEP), power supply chain, supply chain optimization and coordination, optimal ordering quantity model, revenue-sharing contract model