Abstract:Wild Glycyrrhiza uralensis as the research material, we compared stomasaltsecreting condition, leaves anatomical structure and net photosynthetic rate (Pn), stomatal conductance (Gs) among different leaves of G. uralensis. The results showed that: (1) compared with the upper and middle leaves stomata, the lower leaves stomata were of the strongest salt secretion ability, secondly were the middle leaves stomata. There were no salt accumulation at the upper leaves stomata. (2) The upper and middle leaves chlorophyll content were significantly higher than that of lower leaves. (3) The upper leaves mesophyll cells arranged the densest, the middle leaves taken second place, and the lower leaves mesophyll cells arranged loose; (4) The leaves net photosynthetic rate and stomatal conductance in the upper leaves were the highest, and those in the lower leaves were the lowest. The stomatal conductance also appears the same pattern. We concluded that the upper leaves stoma are mainly used for gasexchanging of photosynthetic in the main process of plant growth, hardly secret salt, and the lower of senescen leaves photosynthetic capacity is weak, the stoma is mainly responsible for put the excess salt out of the body, in order to maintain ion balance, to ensure normal metabolism of G. uralensis. So the division of labor and collaboration of different parts of the leaves achieve a clever tradeoff between the two interestconflicting behaviors: stomatal saltsecreting and photosynthetic gas exchange, which is an adaptation strategy of G. uralensis to the high salt environment.