TiO2 nanorods were fabricated by sequentially implanted with Zn and Ti ions into SiO2 substrate with post annealing in oxygen atmosphere at 1000°C. Comparing with single Ti ion implanted sample, the absorption edge of TiO2 nanorods showed a large red shift from 375nm to 450nm with its optical band gap reduced to about 2.5eV for Zn and Ti ions sequentially implanted samples. Microstructure analysis revealed that Zn was incorporated into TiO2 lattices which resulted in the band gap reduction. The results suggest that Zn and Ti ion sequential implantation is an effective way to synthesize TiO2 nanorods with enhanced visible light absorption.