TiS₂ and Ti₂CS₂ are two potential candidates as anode materials for rechargeable ion batteries. However, the issues of semiconductor property and re-stacking prevent their development. In this work, we assembled a van der Waals heterostructure of TiS₂/Ti₂CS₂ and investigated its possibility as an anode material for Li/Na/K-ion batteries (LIBs/NIBs/KIBs) by first-principles calculations. The results show that the TiS₂/Ti₂CS₂ has excellent stability and metallic nature. The Li, Na and K ions exhibit extremely low diffusion barriers (below 0.4 eV) in the TiS₂/Ti₂CS₂ interlayer, which predicts that it has remarkable rate performance. For NIBs and KIBs, the average open circuit voltages (0.626 V and 0.995 V) of TiS₂/Ti₂CS₂ are in the range of 0–1 V and the theoretical specific capacities (566 mA·h/g and 283 mA·h/g) are higher than those (35 mA·h/g and 279 mA·h/g) of graphite anode for the corresponding batteries. All of this indicate that the TiS₂/Ti₂CS₂ is well suited as an anode material for NIBs and KIBs. Our study may provide guidance and new ideas for the theoretical and experimental design of new anode materials for metal-ion batteries.