Abstract: The ash contents, gross caloric values and ash free caloric values in leaves of 46 bamboo taxa (including varieties and cultivars) of 14 genus in the Bamboo Garden of Hua'an County, Fujian in winter were studied. The ash contents, gross caloric values and ash free caloric values in leaves of these bamboo taxa varied from 8.05% to 28.14%, from 14957.3J/g to 19111.4J/g and from 19473.1J/g to 24646.2J/g, respectively. Gross caloric values （Y） correlated remarkably with ash contents（X）, the regression equation being Y= -169.21X+20241(r=0.7370**, df=44). The high ash contents resulted in low caloric values in dry leaves of bamboos.