The invention discloses an automatic recognition method and device for electric contact points. According to the method, convex ribs are additionally arranged on the lower boundary of a feeding guiderail of an automatic welder vibration disc, the surfaces of the electric contact points are machined in advance, the electric contact points are fed into the automatic welder vibration disc, a vibration source is loaded on the vibration disc, the feeding guide rail vertically vibrates, the electric contact points with the downward machined surfaces slide down from the feeding guide rail, and the electric contact points with the upward machined surfaces are left on the guide rail due to supporting of the convex ribs. The device comprises the feeding guide rail with the convex ribs and the vibration source. By means of the automatic recognition method and device for the electric contact points, automatic recognition of the front faces and the back faces of the electric contact points can beaccurately achieved, the recognition method is simple, recognition is accurate, and efficiency is high. The automatic recognition device is simple in structure, low in manufacturing cost and accuratein recognition, and the automatic welding efficiency of an electric contact point assembly is greatly improved.