In order to better understand the structure of the bordered pit membrane and Micropores on margo of Cunninghamia lanceolata. The structure was studied through the observation using scanning electron microscope. The better scanning electron microscope pictures are obtained. At the same time, we still study the micropore on pit membrane of the fresh wood utilizing micro-graphics analysis. Compare the bordered pit membrane between fresh wood and air-dried wood , the following conclusions are drawn:1. The borde...