A pot experiment was conducted to explore the effects of stimulated acid rain treatments with different pH values (pH 5.6, pH 4.0, pH 3.0 and pH 2.0) in autumn on leaf photosynthetic physiological characteristics in the leaf of Acer buergerianum Miq. The results showed that: (1) the relative contents of chlorophyll in the leaf decreased with pH value of stimulated acid rain decreased, while content of MDA in the leaf increased. Membrane permeability and proline content firstly increased and then decreased during stimulated acid rain treatment. On the 20th day of the treatment, membrane permeability of plants growing under pH 2.0 reached the highest level of 146.3%. (2) The net photosynthetic rate, transpiration rate, water use efficiency as well as apparent light utilization efficiency and apparent CO₂ utilization efficiency significantly declined under stimulated acid rain treatments, especially under stimulated acid rain of pH 3.0 and 2.0. Comprehensive analysis showed that, stimulated acid rain treatment of pH 4.0 did not significantly affect leaf photosynthetic physiological characteristics, but stimulated acid rain at pH 3.0 and below make chlorophyll contents decreased, damage the membrane system and result in a significant decrease of photosynthetic rate. Also A. buergerianum Miq. is able to adapt to weak acid rain environment, that could be used as afforestation tree species in acid rain area.