The invention discloses a zirconia ceramic forming device. The zirconia ceramic forming device comprises a motor, a forming device, an extrusion disc and a feeding device. The motor is connected with a rotation disc through a spindle, and lower dies are fixedly arranged on the rotation disc. Each lower die is provided with a forming cavity. The forming device is internally provided with a lifting hydraulic cylinder. The forming device is provided with a controller. An upper die is arranged below the lifting hydraulic cylinder and fixedly arranged above the extrusion disc. An electric heating device is fixedly arranged at the bottom of the extrusion disc. A charging port is formed in the upper portion of the feeding device. A spiral discharger is fixedly arranged in the feeding device. A discharging port is formed in the lower portion of the left side of the spiral discharger and communicates with the feeding device. The zirconia ceramic forming device is provided with the four lower dies so that multiple forming tasks can be conducted at the same time, and the work efficiency is high. In the whole forming process, charging is conducted through the spiral discharger, manual charging is not needed, and labor intensity is low.