BiVO4/MIL-100(Fe) composites were prepared by one-pot hydrothermal method using NH4VO3, Bi(NO3)3•5H2O, 1,3,5-benzenetricarboxylic acid and Fe(NO3)3•9H2O as raw materials. The structure, morphology, specific area and optical property of BiVO4/MIL-100(Fe) composites were characterized by XRD, SEM, N2 adsorption-desorption, UV-Vis DRS and PL. The composites had larger specific surface area. XRD results showed that BiVO4 had mixed crystal structure of monoclinic phase and tetragonal phase. The absorption intensity of BiVO4/MIL-100(Fe) composites for visible light was higher than that of MIL-100(Fe). The recombination rate between photogenerated electrons and holes decreased after the composites absorbed visible light. Different materials were used as catalysts for the photodegradation of crystal violet under visible light. Among them, BiVO4/3MIL-100(Fe) composites displayed the highest photocatalytic activity. The results revealed that the degradation rate of 30 mg BiVO4/3MIL-100(Fe) composites for 30 mL crystal violet solution with an initial concentration of 30 mg/L was 98.7% under visible light irradiation for 80 min. The holes were main active catalytic species. Besides, BiVO4/3MIL-100(Fe) composites exhibited stronger photocatalytic degradation ability for crystal violet, rhodamine B and methylene blue under sunlight irradiation.