The present invention discloses a method for activating an alkaline storage cell comprising a non-sintered type nickel positive electrode comprised of a metallic cobalt powder. The method comprises a first step for fabricating the alkaline storage cell, a second step for charging the fabricated storage cell is charged with the charging amount of 1000 mAH or lower than the same per 1 g of the metallic cobalt powder included in the positive electrode, a third step for resting the charged storage cell, and a fourth step for applying an initial charging/discharging operation is applied to the storage cell which was rested at the third step.