The phenological observations of mango grafting survival were conducted in phases over the years, and the statistical analysis is made of the meteorological observation data in the same period. The results show that the survival rate of mango grafting is positively correlated with the temperature during the healing period of grafting interfaces, and no obvious correlation is found with the light, rainfall, and relative humidity. The regression equation of the grafting survival rate and the sixday average temperature and maximum temperature after grafting is established. The main factor impacting grafting survival is the daily average temperature. In the critical period of mango grafting survival, that is, the physically vulnerable period of graft interface healing, morethannormal low or unusual high temperature has tremendous negative impact on grafting survival. Some suggestions are discussed about the increase of the grafting survival rate according to meteorological conditions.