Effective customer satisfaction investigation is a very important precondition for e-commerce. It is the problem which needs to be solved for e-commerce customer satisfaction through use of advanced methods to evaluate the customer satisfaction. This paper establishes a customer satisfaction evaluation method based on combination of linguistic variables, fuzzy triangular numbers, and fuzzy TOPSIS; also, do a case study. The results of demonstrated case study shows that the designed evaluation method creates suitable results and the evaluation could be done as well as possible.