Phosphorus (P) solubilization bacteria (PSB) is a group of important beneficial microbes which influence the ability of soil P supply due to the transformation of insoluble inorganic P unavailable for plants into available state. Cadmium (Cd) is a heavy metal commonly found in pollution soils. To study the growth and P dissolving ability of PSB under Cd²⁺ stress could be helpful to further understand the effects of P transformation and supply in Cd polluted soils and to provide the beneficial information on the improvement of plant P nutrition. In this paper, 4 PSB strains in Pseudomonadaceae genus isolated from moso bamboo (Phyllostachys pubescens) soil in Jinyun National Forest Park in Chongqing, were used to compare their P-dissolving abilities, and to study the changes in their growth and P solubilization in the culture mediums with Cd²⁺ added in different concentrations. The results showed that P dissolving abilities changed in a sequence of PSB05 > PSB09 >PSB07 > PSB01. The highest P dissolving index and P dissolving rate were 2.08 times and 4.14 times than those of the lowest, respectively. After being shaken for 120 hours, pH of culture solution showed an order of PSB01 > PSB07 > PSB09 > PSB05, and a negative correlation was found between soluble inorganic P and pH value (soluble inorganic P =–83.148 pH＋581.96, R²=0.9052, n=25). The colony and P-dissolving-ring diameters of PBS05 strains grown on solid culture mediums were decreased with Cd²⁺ concentrations increased. In liquid culture mediums with Cd²⁺ 0.5–2.0 mg /L, the number of PSB05 strains was reduced by 22.09%–68.18% compared with no Cd²⁺. Simultaneously, the efflux of oxalate, acetate, citrate and proton was inhibited by PSB05 strains, and the amount of inorganic P that dissolved from insoluble phosphates was reduced by 5.27%–38.45%. PSB strains tested in the present experiment varied significantly in P dissolving abilities. Cd²⁺ inhibited microbial growth, organic acid and proton efflux and P solubilization at high concentrations, which is unbeneficial to P supply for in trees in forests.