As a common woody vegetable in south China and southwest China，the tender stems and leaves of Erythropalum scandens Bl.have good taste and high nutritional value，but the cultivation and researches on its seedling stage are not clear at present.Because of the lack of research on the characteristics of NPK formula fertilization at seedling stage，this study adopted “3414” formula fertilization method，and carried out topdressing experiment on 1.5-year-old E. scandens officinalis cutting seedlings from Daxin provenance，in order to find a suitable ratio of NPK fertilizer for its seedling growth and development.The results showed that proper fertilization could improve the plant growth and promote the growth and development of aboveground and underground parts.Nitrogen played an important role in the growth and development of E. scandens.Except for T2(N0P2K2)treatment，the growth of aboveground and underground parts of most treatments were significantly improved compared with the control group(T1，N0P0K0)without fertilization.The results of fuzzy membership function analysis showed that the average membership function value after fertilization was in descending order as follows:T5(N2P1K2)>T6(N2P2K2)>T3(N1P2K2)>T14(N2P1K1)>T10(N2P2K3)>T4(N2P0K2)>T9(N2P2K1)>T8(N2P2K0)>T12(N1P1K2)>T7(N2P3K2)>T11(N3P2K2 >T13(N1P2K1)>T1(N0P0K0)>T2(N0P2K2).In conclusion，under the experimental conditions，T5 treatment(N 1 g/plant+P2O5 0.8 g/plant+K2O 0.8 g/plant)and T6 treatment(N 1 g/plant+P2O5 1.6 g/plant+K2O 0.8 g/plant)had the best comprehensive performance，with vigorous plant growth，abundant new buds and leaves，vigorous branches and strong roots.So rational application of nitrogen fertilizer and reasonable combination of phosphorus and potassium fertilizer are the key points of seedling cultivation of E. scandens.