The invention discloses an electricity charge invoice stamping machine and belongs to the technical field of automated office equipment. The electricity charge invoice stamping machine solves the technical problem that existing invoice stamping machine cannot automatically complete stamping and cut collection of three-copy invoices. The electricity charge invoice stamping machine comprises a machine frame, a conveying mechanism, a stamping device and a collecting device, wherein the conveying mechanism, the stamping device and the collecting device are arranged on the machine frame; the conveying mechanism achieves automatic conveying of a three-copy invoice stamp; the stamping device achieves automatic stamping on the second invoice copy and the third invoice copy of a three-copy invoice; the collecting device achieves automatic cutting of the three-copy invoice. The electricity charge invoice stamping machine greatly improves the stamping and cut collecting efficiency.