Abstract: The authors observed the difference of flowering phenology between A.chinensis and A.deliciosa species in Nanjing in order to provide a theoretical guidance for their florescence prediction and management. A.chinensis and A.deliciosa species were used to observe and record early flowering stage, full flowering stage, dropping flowering stage and fruiting stage in the field. At the same time, the statistics of their blossom duration were analyzed. The results showed that: the florescence of A.chinensis and A.deliciosa species concentrated in the mid April and the early May,‘Hong yang’bloomed the earliest on April 10 and‘Hayward’bloomed the latest on May 3, the difference of which was 24 days; in addition, different kiwifruit varieties had different blossom duration, the longest blossom duration of‘Cuiyu’was 17 days and the shortest blossom duration of ‘Jinkui’was only 5 days; A.chinensis species bloomed earlier and had longer blossom duration than A.deliciosa.