N-p heterojunction Ag3PO4-LaFeO3/EB-40% photocatalyst was prepared by in-situ deposition-precipitation method using exfoliated bentonite (EB) as the support. The morphology, crystal structure, optical absorption properties, specific surface area, and photochemical properties of the composite were characterized by XRD, TEM, XPS, UV-Vis DRS, BET, EIS, and photocurrent spectra. It was found that, LaFeO3 and Ag3PO4 formed a compact n-p heterojunction and uniformly dispersed on the surface of EB, which significantly broadened the light response range of Ag3PO4 and effectively promoted the separation of photogenerated electron-hole pairs. The photocatalytic performance of the samples were evaluated by photodegradation of phenol under visible light. The results showed, the degradation rate constant of Ag3PO4-LaFeO3/EB-40% was 4.2 times than that of bare Ag3PO4, which could achieve a 97% removal rate of phenol under neutral condition and 81.62% removal rate after recycling 4 times.