In order to address the issues of low energy utilization rate and high energy consumption in the chlor-alkali industry, a method using hydrosol to prepare ruthenium-titanium (Ru-Ti) anode was proposed to enhance catalytic efficiency. The Ru-Ti anodes under different conditions were prepared by using the hydrosol method. The effects of the concentration of hydrochloric acid precursor, the molar ratio of Ru-Ti and the number of coating layers on the chlorine evolution performance of the anodes were studied by X-ray diffraction (XRD), linear sweep voltammetry (LSV), cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The results show that the Ru-Ti anode prepared under the conditions of a precursor solution with a hydrochloric acid concentration of 1.5 mol/L, a Ru-Ti molar ratio of 3∶7, and 10 coating layers has the lowest chlorine evolution potential of 1.09 V vs. SCE, which is much lower than the chlorine evolution potential of the graphite electrode (1.25 V vs. SCE). The titanium-based Ru-Ti anode prepared by the aqueous sol-gel method under certain conditions has excellent electrocatalytic chlorine evolution performance, offering valuable insights for the development of high-performance chlorine evolution anode materials.