The invention discloses a method for directly producing battery grade nickel sulfate from nickel-cobalt concentrate, and belongs to the technical field of nonferrous metallurgy. The nickel-cobalt concentrate is used for directly producing battery-grade high-purity nickel sulfate products by the technologies of stirring leaching, extraction and impurity removal, extraction and nickel-cobalt separation, and direct evaporation and crystallization. The most remarkable characteristic of the process is that copper, zinc, manganese, cobalt and magnesium can be removed and separated by an extraction process, so that nickel can be used for directly producing high-purity battery grade nickel sulfate products without extraction. By adopting the method, the process flow is simplified greatly, the metal recovery rate is high, and the production cost of nickel sulfate is lowered remarkably.