The invention provides a recovery method of selenium-germanium-sulfur. The recovery method comprises the following steps: S1) crushing the selenium-germanium-sulfur glass, then performing ball milling, and obtaining glass powder; S2) mixing the glass powder, hydrochloric acid and concentrated sulfuric acid, extracting, adding an oxidant in the extraction process until the potential rises to 200 to400 mV, filtering, and obtaining a solution after the primary selenium deposition and crude selenium; S3) performing the chlorination distillation for the solution after the primary selenium deposition, and obtaining a solution after the distillation and germanium tetrachloride; S4) mixing the solution after the distillation and a reducing agent, reacting, filtering, and obtaining crude selenium.Compared with the prior art, by controlling the potential in the oxidation extraction process, the oxidation process is controlled, so that the selenium in the selenium-germanium-sulfur glass is oxidized from bivalence to zero valence, the element selenium is obtained, the selenium and the germanium are effectively separated, the selenium can be recovered by virtue of various ways, and the recovery rate is higher.