[ ${eta}$ ]-Cyclodextrin derivative containing cyanuric chloride moiety (${eta}CD-CC$) was synthesized by a reaction of ${eta}-cyclodextrin;({eta}CD-CC)$ with cyanuric chloride in alkaline condition. FT-IR and UV spectra along with the results of elemental analysis indicated that cyanuric chloride was bound to ${eta}CD$. Remaining monochlorotriazine group in ${eta}CD-CC$ was expected to be used as a reactive site for cellulosic fibers. The ${eta}CD-CC$ could be used as a host material for inclusion complex of various guest molecules. As an example, vanillin, a flavoring agent in foods and others, was included in the ${eta}CD-CC$ to make a perfume inclusion complex. UV analysis showed that the vanillin-included complex of ${eta}CD-CC$ released vanillin more slowly than vanillin itself, which reveals that it can be used as a feasible fragrant finishing agent for textiles.