With the method of ecological footprint,this paper makes a calculation of trading ecological footprints in China from 1991 to 2008. The results show that the trading ecological footprints of China was surplus from 1991 to 1994,export trade carrying the ecological footprints exceeded the import. The ecological trading footprints of China's were deficit since 1995 (except of 1998),export trade that brought ecological footprints were less than the import. The growth of trading ecological footprints of import and export was both in the fluctuation,and elasticity of trading ecological footprints was varied.