Abstract: In order to prepare efficient absorbent for Cd(Ⅱ), polymeric aluminum hydroxyl (Al₁₃) was added into the dispersion of graphite oxide (GO) by direct titration method firstly, and graphite oxide-polymeric aluminum hydroxyl composites (GO-Al₁₃) were synthesized using GO as the matrix. Then, analysis technology such as XRD, FTIR, SEM and so on were used to characterize GO-Al₁₃, and 10 mg GO-Al₁₃ was added into 50 mL Cd(Ⅱ) waste water whose initial concentration was 10 mg/L to conduct the adsorption experiments, thus the removal effects of GO-Al₁₃ on Cd(Ⅱ) were investigated. The results show that Al₁₃⁷⁺ ions will react with oxygen-containing functional groups of GO to form Al-O groups. After adding Al₁₃⁷⁺ ions into GO, the surface morphologies of GO-Al₁₃ will change a lot comparing with GO, irregular concave-convex structures emerge and roughness increases significantly. When the initial concentration of Cd(Ⅱ) in waste water is 10 mg/L and initial pH is 6.0, the removal rate can reach 98.92%. The conclusions obtained indicate that the removal effects of GO-Al₁₃ for Cd(Ⅱ) is preferable.