Titanium dioxide nanotube arrays (TNAs) were fabricated via anodic ionization. Porous MoO₃ was grafted on TNAs with the help of hydrothermal method. Scanning electron microscopy and X-ray powder diffraction was utilized for the confirmation of one dimensional morphology and phase identification. The porous MoO₃ nanoflake-grafted TNAs (MoO₃/TNAs) electrode was used as anode material in lithium ion battery (LIB) and it was found that the areal specific capacity of MoO₃/TNAs (~797 µAh cm⁻²) was three times higher than those of anatase TNAs (~287 µAh cm⁻²) and porous MoO₃ (~234 µAh cm⁻²) at 50 µA cm⁻².