Sucking disc for chip testing

The utility model discloses a sucking disc for chip testing, which comprises a sucking disc main body and an ejection ring, the upper end face of the sucking disc main body is provided with a positioning groove, the center of the upper end face of the positioning groove is provided with a vacuum suction hole, the lower end of the positioning groove is provided with a sliding groove, and the ejection ring is inserted into the sliding groove and is in sliding connection with the sucking disc main body. An air inlet connector and an air suction connector are arranged on the side end face of the suction cup body, the air suction connector is in through connection with the vacuum suction hole, the air inlet connector is in through connection with the lower end face of the sliding groove, and the side end face of the positioning groove is provided with a 45-degree inward draft angle. According to the utility model, the bottom of the positioning groove is provided with the ejection ring which is slidably connected,