Abstract: The Shanxi wild hops in China possesses sex-chromosomes 2n=18A+XX in female plant and 2n=18A+XY in male plant. The chromosome idogiams are similar between cultivated hops (Humulus lupulus) and the wild plants. The sex-chromosomes of male plant exhibit a heteromorphic pair of end-to-end conjugation in diakinesis and metaphase I of PMC meiosis. Using amodification of the 8-hydroxy quinoline treatment to study mitotic division, the middle-section of the short arm of the X-chromosome, after Carbol Fachsin staining is considerable less stainable than the rest of the chromosome.