Abstract: In this study,the glycyrrhiza uralensi, s seedlings as test materials,using different concentration of salt solution （0,50,100,200 mmol/L） watering seedling treatment,the influence of different salt stress treatment on glycyrrhiza seedling growth and physiological and biochemical characteristics were studied. The results showed that under the lower salt concentration （50 mmol/L）, strong growth of glycyrrhiza seedling,developed root and leaf relative water content than control group had no obvious change ;bound water/free water and chlorophyll content were significantly higher than control group. Under high salt concentration solution treatment （100,200 mmol/L）, glycyrrhiza seedling biomass decreased obviously; leaf relative electrical conductivity and bound water/free water increased;leaf relative water content and chlorophyll a/b decreased and the change trend increased with concentration of salt solution. The low concentration of salt stress by liquorice seedlings （50 mmol/L） had certain adaptability.