This study divided cultivars of wintersweet in agricultural zone into 3 groups: Concolor Group, Intermedius Group, Patens Group; and the scientific name were argued in this study. Based on the analysis of the existing cultivar classification principle of wintersweet in agricultural zone, the necessary of cultivar classification principle of wintersweet in agricultural zone according to ICNCP were pointed out. The practicality and scientificalness of the purple texture on the inner tepals as the primary classification standard were demonstrated. 'compliance with international norms, scientific, practical' as the classification principle, the dual classification system of 'cultivar group-cultivar' were carried out.