Abstract: A workpiece cutting method is provided. The workpiece cutting method includes an attaching step of attaching an adhesive tape to the front side or back side of a workpiece, an applying step of applying a liquid resin to the front side or back side of a support member, a pressing step of superimposing the workpiece on the support member in the condition where the liquid resin and the adhesive tape come into contact with each other, and then pressing the workpiece or the support member, a fixing step of curing the liquid resin to thereby fix the workpiece to the support member, and a cutting step of cutting the workpiece fixed to the support member by using a cutting blade.