In order to find an effective method of broken shell of camellia oleifera fruit , the paper designs the broken shell device basic based method of rub extrusion after doing the research about the biological properties of Camellia oleif -era fruit.And we have conducted experimental study of broken shell performance under different roller speed for Camellia oleifera fruit in different size grades and different moisture content .In fact, it identifies that the device can effectively handle fresh Camellia oleifera fruit about 59%moisture content in the roller speed range 80r/min -100r/min.Further ,...