The kinetics of hydroxyl released from three variable charge soils due to specific adsorption of F-, phosphate and chromate were investigated with automatic potentiometric titration meter. The results indicated that the amount of hydroxyl released by three anions followed the order: F->> H2PO4-> CrO42-, which was consistent with the data of adsorption of these anions by the soils. pH showed different effects on hydroxyl release from the soils in different anions’ systems. In F- system, the highest amount of hydroxyl release was observed at pH 5.0, followed by pH 6.0 and the lowest amount of hydroxyl was released at pH 4.0. In chromate system, the amount of hydroxyl released decreased with the increase of system pH, while the effect of pH on hydroxyl release in phosphate system was small. The Elovich equation fits the kinetics data from 2 to 60 minute well and the rate of hydroxyl release decreased with the increase of reaction time. Although a big difference of hydroxyl release due to F- adsoprtion was observed within the first 2 minutes, small difference was found in F- system for the rate of hydroxyl release from three different soils from 2 to 60 minute. While in phosphate and chromate systems, the rate of hydroxyl release from the three soils followed the order: Latosol from Kunming > latosol from Xuwen > red soil from Jiangxi, which was consistent with the content of iron and aluminum oxides in these soils.