Abstract: 1-year-old Shitou almond and A. communis par. persiooides that were often used in Xinjiang were used as the materials in the experiment; effects of different NaCl concentrations on microstructure of leaves were studied. The results showed that: (1) There was no changes of leaves on two rootstocks after 10 and 20 days’ treatment of 75mmol/L NaCl. (2)After 10 days’ treatment of 150mmol/L NaCl, the mesophyl of Shitou almond was obvious thicker, the cells of palisade tissues and spongy tissues became longer; the amount of palisade tissues cells was more ,which arrange more compact. With the salt concentration increasing and time prolonging, the same reflections were happened, but the shape of palisade tissues and spongy tissues cells became more deformed. (3)There were some obvious reflections of A. communis par. persiooides only after 10 days’treatment of 300mmol/L NaCl, the palisade tissues and spongy tissues cells became longer, the palisade tissues cells arrange more compact and became flourishing. The same reflections were happened after 20 days’treatment of 300mmol/L NaCl, but which was no obvious. Three were no obvious changes for the thickness of mesophyll under different concentrations. After comprehensive comparing, we found Shitou almond was more sensitive to NaCl stress, the leaves made obvious reflections under 150mmol/L NaCl. The leaves on A. communis par. persiooides has various under 300mmol/L NaCl, the variety extent of leaves on A. communis par. Persiooides was little in the whole treatments.