Titanium dioxide is one of most widely studied photocatalyst material currently. Because of its chemical and physical properties it has a broad range of applications to solve problems in energetics and environmental protection. Photocatalytic properties of pure TiO2 are high enough only under UV radiation, it must be modified to be used in a radiation zone of visible light. Nanostructured TiO2 photocatalysts with high specific surface area modification with precious metal particles allows to significantly improve photocatalytic properties. TiO2 nanofibers were obtained by using microwave assisted synthesis in solution containing 10M KOH. Chemical deposition method was used to obtain gold modified TiO2 nanofibers. As prepared TiO2 nanofibres were with a diameter of 5nm and with specific surface area up to 129m2/g. Photocatalytic properties were tested by degradation of methylene blue solution on the influence of UV and visible light radiation. Obtained photocatalysts were with up to 48% higher photocatalytical activity under UV irradiation and up to 13% under visible light radiation with respect to pure TiO2 nanofibers. Modified TiO2 nanofibers containing 4.8% gold have shown the highest photocatalytic activity.