Photocatalytic degradation is one of the most attractive, low-cost and sustainable technologies for removing pollutants from waste water. Especially dual metal sulfide-combined graphene-based materials are excellent photocatalysts due to their faster electron transfer ability. Herein, we developed copper titanium sulfide (CuTi2S4) composite-anchored reduced graphene oxide (rGO, CuTi2S4/rGO) material by a feasible hydrothermal approach. The prepared CuTi2S4/rGO material was employed for a degradation of reactive black-5 (RB-5). During the synthesis process, the conversion of graphene oxide into reduced graphene oxide is followed by the in situ deposition of Cu, Ti and S precursors. The resultant material can significantly promote the interfacial contact between CuTi2S4 and rGO, leading to the formation of an active CuTi2S4/rGO composite material. The highly effective anchoring of CuTi2S4 over the rGO material facilitates the transfer of photogenerated electrons from CuTi2S4 to rGO, altering the photocatalytic degradation of RB-5 efficiency under visible light irradiation. In addition, CuTi2S4/rGO reveals a higher photocatalytic response with a band gap of 1.8 eV, which is mainly attributed to the higher adsorption and desorption sites and the excellent charge carrier ability between rGO and CuTi2S4 composite. These studies provide excellent strategies for developing highly stable and effective rGO-based catalyst materials for purifying pollutants and their related applications.