[Objective] The objective of this study is to analyze the variations of soil pH value and surface charge under salt stress, and its influences on the structure of soil water-stable aggregates in order to provide basis for the soil amelioration in horticulture and vegetable garden. [Methods] The laboratory incubation experiment was applied to investigate the effects of salt accumulation on pH value, electrochemical properties and water-stable aggregates of yellow cinnamon soil in the surrounding area of Hefei City. Four salinity treatments(0.3%, 0.6%, 0.9%, 1.2%) and a control treatment(CK) were set up and incubated for 60 d at 25 ℃ in incubator. The samples were then collected from the incubator at 10 d, 30 d and 60 d separately, for the following analysis. [Results] Soil pH value decreased with the increase of salt concentration. Compared to CK, soil pH value of the sample incubated after 60 d decreased by 0.53 at 1.2% salinity level. The amount of soil negative charge decreased with the increase of salt concentration, while there was no significant change in positive charge. The simulated salt with Ca²⁺, Mg²⁺ improved the cementation of micro-aggregates, and resulted in an increase of the amount of macro-aggregates. [Conclusion] Salt can decrease soil pH value and soil negative charge, and improve soil cementation, and also increase the amount of micro-aggregates.