The invention discloses a combined type forming device for a glass cup with carved patterns or designs. The device comprises a main framework, a support and a motor which comprises a motor shell and an output shaft; one end of the support is connected with the motor shell; the other end of the support is connected with a hydraulic cylinder; the output shaft is connected with a forming device body; the forming device body comprises a punching head; a plurality of suction cups are arranged on the side face of the punching head; a conveying device is arranged on the middle portion of the main framework; and a telescopic limiting column is arranged on one side of the conveying device. By adopting the scheme, the glass forming efficiency can be greatly improved, the device can also be accurately aligned with the relative positions of a cup foot and a cup bottom in the process, and the glass cup forming qualification rate is guaranteed; and besides, in the forming process, under the effect of the centrifugal force generated by rotation of the cup foot, patterns in a rotation shape are formed on the cup bottom, carving of professionals is not needed, diversity of glass cups is improved, and the manufacturing efficiency of the glass cup with the carved patterns or designs is improved.