To achieve effective removal of Dimethyl phthalate (DMP) under visible light LED (Vis-LED), N-TiO₂/Ti network catalyst was prepared on the surface of titanium mesh by one-step anodic oxidation of adding urea to electrolyte solution, and the DMP was degraded by multiple layers of N-TiO₂/Ti mesh superposed in a reactor. The N-TiO₂/Ti mesh was characterized by field emission scanning electron microscopy (FESEM), energy dispersive X-ray spectroscopy (EDX), X-ray diffraction spectroscopy (XRD), X-ray photoelectron spectroscopy (XPS), and UV-visible diffuse reflectance spectroscopy (UV-vis DRS). Results show that N element mainly participated in the form of substituted nitrogen, and both surface morphology and crystal structure of the TiO₂ nanotubes were not changed. The forbidden band width of the N-TiO₂/Ti mesh calculated by the Tauc/David-Mott formula was about 2.76 eV, and the absorption band edge was extended to 449 nm, where the visible light absorption performance was significantly enhanced. After the N-TiO₂/Ti foil was equivalently stretched into 3 layers of N-TiO₂/Ti mesh, the degradation rate of DMP increased by 7.5%. When 5 layers of N-TiO₂/Ti mesh were superposed, the degradation rate of DMP tended to be stable and it increased by 25.7% compared with that of Ni-TiO₂/Ti plate. Partial acidity or alkaline was beneficial to the degradation of DMP. The addition of H₂O₂ could promote the degradation of DMP, but H₂O₂ could not effectively degrade DMP under single use and visible light irradiation.