Abstract: Ore association is very complicated in a cobalt oxide mine located in Province du Katanga of Congo. Shaking tables technology is applied in ore dressing.The operating parameters 6-S-types shaking table, such as, feed ore concentration, bulk, dressing volume, horizontal angle of shaking table, quantity of washing water, stroke and frequency, etc.are adjusted and optimized.Comparing with the original process, cobalt recycle rate rose by 8%-10%.And cobalt concentrate grade rose to 12%.