The invention provides a method for extracting metal titanium through molten salt electrolysis of a titanium-containing soluble anode, and relates to the technical field of non-ferrous metal smelting. The method comprises the following steps: uniformly mixing a titanium-containing material and a carbon-containing reducing agent serving as raw materials and then performing compression molding; keeping a temperature range to be 1,000-2,000 DEG C and reacting for 30-600 minutes under the nitrogen-containing atmosphere to prepare a titanium-containing compound with good conductivity; electrolyzing in halide molten salt of alkali metal or alkaline earth metal by taking the titanium-containing compound as an anode to extract the metal titanium. The method for extracting the metal titanium through molten salt electrolysis of the titanium-containing soluble anode is a method which has the advantages of simple process, low energy consumption and capability of realizing industrial preparation of the high-purity metal titanium.