Cultural heritage is the record of social development periods, the basis for historical textual research. It is non-renewable social public wealth. But the research of cultural heritage has been limited in the historical research in the theoretical fields, there is little economic research in this field. Therefore, governments find no normative guidance when they try to develop and preserve cultural heritage. In order to provide effective reference for the preservation, reasonable development and scientific use of this kind of tourism resource, based on theory of consumer surplus and case study of Tianjin Five-Avenue Area, this paper uses Travel Cost Method(TCM) to assess the use values and non-use values of tourism resource of cultural heritage, analyzes the demographic and socio-economic effects on the use of economic value of tourism resource, and proposes suggestions on the improvement of usage of tourism resource based on the research results.