In this work, K2Ti6O13 nanorods have been synthesized and evaluated as potassium-ion battery anode material. A reversible capacity of 95.7mAhg−1 at 0.01Ag−1 is obtained by this K2Ti6O13 nanorods electrode, and its robust structure survives after long cycling. Our result suggests that a solid–solution storage mechanism occurs to the K2Ti6O13 anode and the partial reversible redox reaction of Ti4+/Ti3+ contributes to the reversible capacity. The superior cycling stability of K2Ti6O13 nanorods electrode makes it a competitive KIBs anode for application on large-scale energy storage systems.