The invention discloses a biological disinfectant high-efficiency stirring device including a bottom plate; both sides of the top of the bottom plate are each fixedly connected with a stand column; a stirring box is movably connected between the two stand columns, and the top of the stirring box is provided with an opening; the opening is provided with an opening cover adaptive to the opening; one side of the top of the bottom plate is fixedly connected with a first motor; a rotating shaft of the first motor is fixedly connected with a first connection rod through a coupler; one end, away from the first motor, of the first connection rod is fixedly connected with a rotating shaft; the surface of the rotating shaft is fixedly connected with a gear shaft. The biological disinfectant high-efficiency stirring device solves the condition that all stirring devices on the current market adopt a single motor to drive the stirring devices for stirring treatment, has the advantages of simple structure and convenient operation, is greatly convenient for users to use, improves the stirring effect, shortens the stirring time, avoids reduction of the work efficiency, reduces expenditure of economic costs, and prevents still needed secondary stirring treatment.