The invention discloses a high-efficiency purification process for acid leaching solutions of active substances in waste lithium batteries. The process comprises working procedures of the purification of the acid leaching solutions of the active materials of positive poles in the waste lithium batteries. The process is mainly characterized by adopting an improved hydrolysis precipitation method and an improved oxidation precipitation method to remove impurity ions in the acid leaching solutions. The process comprises four steps of removing iron by a sodium jarosite method; removing manganese by the oxidation precipitation method; removing aluminum by ammonium bicarbonate; and removing copper by sodium carbonate. A method used by the invention has the advantages of low cost, large operation flexibility, and high cobalt recovery rate, can comprehensively recover valuable metals such as the aluminum, the copper, the manganese and the like, and is suitable for lithium cobalt oxide battery materials which are widely used at present and heavily doped battery materials which may be used in the future. The use of the method can ensure that the total recovery rate of cobalt in waste lithium ion batteries is about 98 percent, and the content of impurities is lower than 2 percent.