To provide slip sheet removing device and method capable of surely removing only a slip sheet, and plate taking device and method.

This slip sheet removing device is provided with an arm, a head engaged with a distal end part of the arm, and a moving mechanism for moving the arm in a direction where the head approaches a planar body or in a direction where the head recedes from the planar body. The head is provided with a head body and at least a nipping mechanism for nipping a slip sheet. The moving mechanism moves the arm in the direction where the head approaches the planar body, the nipping mechanism nips the slip sheet on the topmost surface, the moving mechanism moves the arm in the direction where the head recedes from the planer body, and subsequently the nipping mechanism releases the nipped slip sheet and removes the slip sheet from the planar body.