The application discloses a current collector, a battery pole piece and a method for making the current collector, which belong to the technical field of batteries. The current collector includes: a first current collector layer, a first coating layer, a second coating layer and a second current collector layer stacked in sequence, there is an inner cavity between the first coating layer and the second coating layer, and the The first coating layer and the second coating layer are supported and connected by supporting columns; wherein, the current collector further includes through holes, and the through holes sequentially penetrate through the first current collector layer, the first coating layer, and the second coating layer. The plating layer and the second current collector layer, and the through hole communicates with the inner cavity. In this way, the compaction density of the active material on the current collector can be reduced, the polarization of the battery can be reduced, and the purpose of improving the charging and discharging performance of the battery can be achieved.