In a year, with the change of external environmental conditions, grape plants have regular changes in external morphology and internal physiology, which is called phenology. The vegetative growth period is called the liquid flow in spring, germination and deciduous leaves in autumn. From defoliation to germination in the next spring, it is called dormancy period. (1) vegetative growth period: divided into bleeding period, germination and new shoot growth period, flowering period, berry growth period, berry maturity period and new shoot mature defoliation period. Dormant period: it is divided into two periods: physiological dormancy period and forced dormancy period.