With its unique geographic site, the bank protectionworks in the There Gorges reservoir area were more complex than other projects.By using fuzzy comprehensive evaluation, the dike-line selection was analyzed quantitily, some special evaluation factors were proposed and their subordinate functions and rules also presented. Reservoir capacity of the Three Gorges Projects is regarded as the important judging factor in calculation of weight, so this provides a quantity analysis tool, which can help engineers make decision for the bank protection works in the TGP reservoir area.