The invention relates to an automatic loading and unloading device of a lithium battery pole piece, which is particularly used for automatic loading and unloading when the lithium battery cell is wound, and belongs to the technical field of lithium battery winding. The device mainly comprises a transverse plate, a vertical plate, a support plate, a handling motor, a handling screw rod, a handling cylinder, a left unwinding support, a right unwinding support, a rod-less cylinder, a left unwinding mechanism, a unwinding screw, a first driving motor, a right unwinding mechanism, an blanking support, a fixed clamping jaw, a movable clamping jaw, a first section cylinder, a second section cylinder, a cutter, a first pushing cylinder, a second pushing cylinder, a first tape cylinder, a second tape cylinder, a third tape cylinder, a support roller, a motor support, a tape motor and a rotary shaft. The automatic loading and unloading device has a simple, compact and reasonable structure, is convenient in operation and high in precision, and can wind continuously; and according to the automatic loading and unloading device, the repeated membrane penetration is avoided, the working efficiency is improved, and the labor intensity is reduced greatly.