Abstract: The influence of normal and exponential N-fertilization methods on the height, ground diameter and biomass of oneyear Cyclobalanopsis glauca seedlings was studied. The results showed that there was little difference of seedlings height and ground diameter between two methods at same level of N-fertilizer, and the seedling height and biomass of exponential fertilization treatment were 116.7%, and 107.3% to that of normal fertilization treatment. However, their ground diameter was only 78.3% to that of normal method. Furthermore, the seedlings height, ground diameter and biomass increased with the increase of N-fertilizer use, and showed a significant difference on seedlings height and biomass, but no significant difference existed in the ground diameter. In future, the N-fertilizer amounts should be enlarged research to confirm the suitable level and the difference of fertilization at normal and exponential method.