Abstract: The impact of bamboo flowing on giant pandas in Wolong Nature Reserve was discussed. An impulsive model on Giant panda-Bashania fangiana-Fargesia robusta with partial eclipse behavior was presented. The local and global stability of giant panda-free periodic solution were obtained. Furthermore, the sufficient conditions for which the system is persist were obtained. The results showed that under certain conditions, single staple food bamboo flowering in Wolong Nature Reserve will not affect the survival of giant pandas.