Based on the International Tundra Experiment (ITEX) method,using temperature gradient,the correlation between major plants of functional groups and ground temperature was studied in Kobresia meadow from the individual level.The aim is to discuss the responding for growing characters of major species of different functional groups in Kobresia meadow to temperature increasing in warming background.The results showed that:(1)It was line correlation between the height of Carex alrofusca and ground temperature（P<0.01）,but they were quadratic correlation not significant between the number of tillers,leaves and ground temperature;(2)They were quadratic correlation between the number of tillers,leaves and the height of Kobresia humilis and ground temperature（P<0.05）.They were line correlation between the number of tillers,leaves and the height of Elymus nutans,Poa pratensis ground temperature（P<0.01）.(3)It was quadratic correlation not significant between the number of stolons of Lagotis brachystachya (Forbs functional group) and ground temperature,but they were line correlation between the number of leaves,the height of L.brachystachya and ground temperature;They were line correlation between the number of leaves,buds and the height of Ranunculus brotherusii and ground temperature（P<0.01）.It was declared that it was not accordance that species of different functional groups in response to ground temperature was difference.If ground temperature will continue increase in future,it will benefit to species of Gramineae functional group,but it will disadvantage for species of Cyperaceae functional group and Forbs functional group.