[Objective] The research aimed to utilize pomegranate rind in Mengzi better and make contribution to develop the local economic resources.[Method] Using water-dissolving method,tannin was extracted from pomegranate rind in Mengzi.The physicochemical properties of the extracted tannin were studied by using spectrophotometric method.[Result] The content of tannin extracted from pomegranate rind by using water-dissolving method reached 25%.The obtained tannin had the maximum absorption wavelength of 360 nm,goo...