An endoscope plug body includes a plug frame with which a venting cap is covered, an inner peripheral surface being formed in the venting cap, the inner peripheral surface being communicated with a channel arranged in an endoscope. The plug frame includes a latch member that latches the plug frame along the periphery of the venting cap to attach the plug frame to the venting cap and a breaking member that breaks a partial area of the plug frame while maintained in a continuous state in a circumferential direction of the plug frame, the partial area reaching one end portion of the plug frame while including a part of a latched portion of the latch member.
