The umbrella bamboo (Fargesia robusta) is one of the staple bamboos for giant panda (Ailuropoda melanoleuca). The shoot growth and development of umbrella bamboo were investigated in the Sichuan Longxi-Hongkou National Nature Reserve from October 2009 to April 2011, and the effects of the Wenchuan Earthquake on the bamboos were evaluated as well. According to the damage degrees caused by the earthquake and its secondary geological disaster to umbrella bamboo population, the disturbances from the earthquake were classified into intense, moderate and slight types. Fifty plots were set in the population corresponded to each type, and a total of 150 plots were set in the reserve. The shooting time (Julian day) was significantly delayed in the plots with intense disturbance compared with that in the plots with moderate and slight disturbances, while the shooting time displayed no significant difference between the plots with moderate and slight disturbances. The shooting durations showed no difference among plots with three different types of earthquake's disturbance. The regeneration of umbrella bamboo was investigated based on quantity index of number of annual shoots and young bamboos. Numbers of annual shoots in the plots with intense and moderate disturbances were significantly higher than that in the plots with slight disturbance, while that between plots with intense and moderate disturbances showed no significant difference. Numbers of annual young bamboos in plots with intense disturbance was the highest, while that in the plots with moderate and slight disturbances were not significantly different. This showed that intense and moderate disturbances from the earthquake promoted the regeneration of umbrella bamboo through increasing the numbers of annual shoots and young bamboos. The regeneration of umbrella bamboo was investigated based on quality index of basal diameter and culm height as well. Basal diameter and culm height in the plots with intense disturbance were obviously smaller than that in the plots with moderate and slight disturbances. Basal diameter in the plots with moderate disturbance had no significant difference to that in the plots with slight disturbance, whereas culm height was significantly lower than that in the plots with slight disturbance. It indicated that quality of the umbrella bamboos in the plots with intense disturbance was the worst, and basal diameter in the plots with moderate disturbance had been basically restored, but culm height was still limited. The withered shoots in the plots with different levels of disturbances were attributed to external mechanical damage, animal feeding, growth stop and etc. In the present study, the rates of withered shoots due to external mechanical damage and growth stop in the plots with intense disturbance were significantly higher than that in the plots with moderate and slight disturbances. Moreover, the rates of withered shoots due to animal feeding in the plots with intense disturbance were significantly lower than that in other disturbance plots. It suggested that bamboo shoots in the plots with intense disturbance were much vulnerable to external mechanical damage and growth stop, however, that in the plots with moderate and slight disturbances were easy to die due to animal feeding. Shoot growth of umbrella bamboo after earthquake was adapted to the different degrees of disturbances in the natural reserve.