On the basis of empirical research,it introduces Er’su Tibetan’s marriage custom in Xinshiba Town of Ganluo County and describes the change of the marriage payment of Er’su Tibetans in Xinshiba Town.Proper marriage payment is conducive to the harmonious society building,but excessive cash gifts collection adds some friends’and relatives’family financial burden.Although marriage payment issue belongs to an individual behavior,if we don’t guide it correctly,it may cause some disharmonious factors,which may go against the socialist harmonious society building.