Abstract: To research the growth of tropical plant from dramatically different background, , the result was shown through analysis of environmental conditions and physiological index of tropic plants:(1) the temperature and RH of Shanghai Botanic Garden were higher and lower than those of Shanghai Science and Technology museum respectively; (2) the CO2 concentration of Shanghai Botanic Garden was lower than that of Shanghai Science and Technology museum; (3)gs of plant at Shanghai Botanic Garden was higher than that of Shanghai Science and Technology museum, correlation coefficients of gs and Tr were shown 0.994 and 0.973 respectively ,reaching the most notable positive correlation.