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_{:TiO2 nanopore array was firstly prepared by three-stepped anodization process, and subsequently Ag nanoparticles with sizes of 30 nm were deposited on TiO2 nanoarray through a continuous ion layer adsorption. The resulting Ag/TiO2 nanopore array was then used as a surface enhanced Raman scattering (SERS) active substrate, and their uniformity, stability and recyclability were investigated. The results showed that the Ag/TiO2 substrates delivered a detection limit of up to ~10-7 mol/L under excitation at 532 nm. Moreover, the substrates exhibited outstanding uniformity and stability. The Ag/TiO2 nanoarray also conducted photocatalysis decomposition of adsorbed R6G molecules after 30 min irradiation under simulated solar light, exhibiting high recyclability. Such a Ag/TiO2 nanopore array has great potential as an ideal SERS active substrate due to its highly ordered structure and excellent properties.}