The present study was carried out to examine the effects of different dosage nitrogen fertilizer (0,3 and 9 g·m-2N) on growth,and photosynthetic attributes in zoysiagrass (Zoysia japonica).The results showed that treatments of 3 and 9 g·m-2N significantly increased the above and under ground biomass of zoysiagrass compared to controls.Treatments of 3 and 9 g·m-2N enhanced chlorophyll contents,net photosynthetic rate (Pn),stomatal conduction (Gs) and transpiration rate (Tr),water use efficiency (WUE),maximum quantum efficiency(Fv/Fm),the PSⅡ activity (Fv/Fo),actual quantum yield of PSII electron transformation (ΦPSII),photochemical quenching coefficient(qP)compared with controls,but decreased non-photochemical quenching coefficient(qN).The 3 g·m-2 nitrogen fertilizer treatment effect was better than the 9 g·m-2 and 3 g·m-2 nitrogen fertilizer on promoting the growth and development of zoysiagrass.