Abstract: With several methods,the developmental anatomy of the wood of Zelkova schneideriana was studied.The results are as follows:The wood of Zelkova schneideriana is ring porous,and its annual ring is very distinct.The pore pattern of the early wood is ring arrangment which is composed of 1～2 rows vessel elements,and the pore pattern of the late wood is pore cluster which is composed of many spiral vascular tracheid and small vessel elements.The fibers are radially arranged.The content of fiber in sap wood is less than that in hearty wood,which indicate that the rate of different tissues differentiated from cambium varies in different growth periods.The wood ray is heterogeneous and multiseriate ray.The main parts are made up of procumbent cells,and the marginal ray cells are squared cells or upright cells that form the end of their uniseries.The axial parenchyma is vasicentric.Vascular tracheid has spiral thickening.Vessels of hearty wood have tyloses,which strengthen the character of corroderesistant and guarantee the fine character of wood of Zelkova schneideriana.The tree grows relative quickly in former 30 years,and its annual ring is 3.57 mm wide in average.After 30 years,the width of annual ring decreases dramatically.Its mean width is 1.17 mm.This result may be closely related to the individual examined tree.