1.7 d。The temperature distribution and variation of the ligule-shape petal, tubular petal and stem of individual and bunches of cut gerbera during vacuum cooling was measured by thermal infrared imaging. Relative fresh weight, stomatal conductivity and transpiration were analyzed during vase period. The results showed that the temperatures and three indexes were marked differently (P<0.05). The average pre-cooling end-temperature and vase life of individual flowers were 11.2℃ lower and 1.7 days longer than bunches of flowers respectively. This research has important value in the determination of pre-cooling end-temperature, the optimization of cooling processes and the evaluation of pre-cooling effect of different amounts of cut flowers. 