The suitable energy alternatives scheme, which for.mulated based on the optimal target of technical and economic com.prehensive indicators, is significant to achieve energy saving, emis.sion reduction and comprehensive energy utilization.In the energyalternatives scheme, the fuzzy multi.attribute decision.making meth.od based on the expectation value is proposed in the situation thatthe weight information is completely unknown or only partiallyknown; and a preferred evaluation index system is constructed, toquantitative analysis the attribute values of the evaluation index.The weighting method of complementary comparison between eachother is used to determine the weight of each layer in the index sys.tem, so as to realize the quantitative comparison and the optimizedselection of energy alternative schemes.Based on the case study, itis verified that the energy alternative evaluation method based onfuzzy multi.attribute decision.making is highly efficient, practicaland easy to operate, at the same time,it can make full use of thefuzzy information which is objectively known and take into accountthe interests of all parties.