The invention provides a copper sheet feeder, comprising: a base, a motor mounted on the base, and a support vertically extending up from the base; a tray for receiving a copper sheet is disposed on the motor, a detection device, a guide wheel for conveying the copper sheet and a follow-up disc are disposed on the support, the detection device is arranged lengthwise along the support, a lever is rotationally connected with the support through the follow-up disc, one end of the lever is provided with a balance, the other end of the lever is provided with a small guide wheel, the guide wheel and the small guide wheel are positioned on different sides of the support with respect to the motor, and the follow-up disc is disposed at one end, far away from the base, of the support and connected with the detection device through a cable to adjust copper sheet feeding speed when the lever pivots around the follow-up disc. The copper sheet feeder supports feeding of large-roll copper sheets, requires fewer manual changes and reduced work for workers and can automatically adjust feeding speed.