To broaden the stoichiometric characteristics of submerged macrophytes in plateau lakes and to restore them in eutrophic plateau lakes,10 lakes of Yunnan plateau were investigated in August 2010.Results showed that the number of species declined with the increase of eutrophic level and most of them belonged to Potamogeton and Myriophyllum.The tissue contents of total carbon(C),total nitrogen(N) and total phosphorous(P) in these 10 lakes ranged from 170.22 373.14 mg/g,0.90 9.70 mg/g and 0.36 4.30 mg/g,respectively.The ratios of C:N,C: P and N: P in 10 lakes ranged from 37.21 188.47,83.18 468.02, 1.57 4.90,respectively.Results of Spearman rank correlation analysis indicated that no significant correlations were found between N: P and environmental factor,such as limnological and physicochemical parameters.As for individual species,the highest mean values of C,N,P,C:N,C: P and N: P were 368.41 mg/g(Potamogeton malaianus),7.60 mg/g(Potamogeton lucens), 3.26 mg/g(Potamogeton pectinatus),68.93(Potamogeton maackianus),224.57(P.lucens),4.82(P.lucens),respectively.We concluded that P is excess and N is relatively limited in these 10 selected lakes,and P.pectinatus,P.maackianus and P.lucens may be the more suitable species for the restoration of eutrophic plateau lakes.