Effect of phosphorus(50，100，150 mg·kg-1)on the growth and photosynthetic characteristics of Zoysia japonica under cadmium stress(50 mg·kg-1 cadmium)was studied in this research.The result showed that the growth and photosynthesis of Zoysia japonica were inhibited by cadmium stress.When applied 100 mg·kg-1 phosphate fertilizer on Zoysia japonica,the leaf length increased 5333%,root length increased 70.5%,chlorophyll a+b content increased 42.85%,net photosynthetic rate(Pn)increased 54.75%,transpiration rate(Tr)increased 94.05%,water use efficiency(WUE)increased 45.85%,PSⅡ primary light energy conversion efficiency(Fv/Fm)increased 12.84%,and had significant difference compared to cadmium stress treatment.Compared with cadmium stress treatment,intercellular CO2 concentration(Ci),tourism electronic transfer efficiency(ERT)decreased in the treatment with 150 mg·kg-1 phosphate fertilizer.Besides stomatal conductance(Gs)increased significantly with increasing of phosphate fertilizer,the leaf length,root length,Pn ,Tr ,Fv/Fm,Ci ,ETR increased firstly and then declined with phosphorus concentration increase.It indicated that phosphate fertilizer regulated growth and photosytnthetic indexes of Zoysia japonica under cadmium stress,and the application level of 100 mg·kg-1 performed best.