Functional, non-toxic and environmental friendly Bi~Ⅲ-contained polyoxometalates(POM) catalysts including Na_(12)[Bi_2W_(22)O_(74)(OH)_2]·42H_2O(Bi-POM), Na_(10)[Bi_2W_(20)Co_2O_(70)(H_2O)_6]·39H_2O(Bi-Co-POM) and Na_8[Bi_2W_(20)Cu_2O_(68)(OH)_2(H_2O)_6]·25H_2O(Bi-Cu-POM) were prepared. They could serve as an efficient catalyst for the allylic oxidation of cyclohexene using molecular oxygen(O_2) as the oxidant. These compounds were characterized by FT-IR, UV, TG/DSC, and XRD. All three Bi~Ⅲ-contained polyox...