This Paper,based on the definitions of correlative concepts,customer satis faction,and perceived effect and so on,deduce the function of customer satisfact ion,customer perceived effect and key customer value firstly,and then discusses the waves among customer satisfaction,perceived effect,logistics service level a nd the logistics cost.

This paper did a case study of two typical trade shows at Dongguan City,Guangdong province,and applied the qualitative analysis approach to make a comparative analysis of the benefit perceptions of exhibitors and visitors with an attempt of exploring into the necessity of professional theme positioning of exhibitions.