Abstract: In order to explore the effect of selenium containing organic fertilizer on the growth of Pueraria lobata, two experimental fields X and y were selected, and the yield and selenium absorption and transport rate were taken as the research indexes. The root application method was used in experimental field X and the liquid foliar spraying method was used in experimental field Y. it was found that when the root application rate was controlled at 18 000～24 000 kg/hm2and the foliar spraying rate was controlled at 45000～55 000 kg/hm2, It can greatly improve the growth rate and quality of Pueraria lobata, and has stronger selenium absorption and transport capacity.