Abstract: The information on the activity rhythm of giant pandas is helpful for captive management.Analysis was made of the daily activity pattern of three captive giant pandas(Xianglin,Lulin and Pingping) by continuous recording data during the summer in the Mount Emei Giant Panda House.The results showed that Pingping and Xianglin had a similar curve of activity rhythm with 3 activity peaks and 1 secondary activity peak while Lulin had 4 activity peaks and 2 secondary activity peaks. Furthermore,3 giant pandas were all in the peak period of activity during 9:00~10:00 and 16:00~17:00,having the activity rate between 66%±22%~89%±37%. According to the results,it was suggested that feeding schedule should be better to be consistent with time showing the high activity rate of giant pandas,which might increase the effective eating and reduce the waste of food.