Disclosed herein is a packing container including: a packing container body including a leading-out section which contains an optical probe having a first end section for incoming of a laser beam and a second end section for outgoing of the incoming laser beam, which leads out the first end section of the optical probe thus contained to the exterior and which is sealed, and a window section by which the laser beam going out from the second end section of the contained optical probe is led out to the exterior; and a light-transmitting member which closes the window section and permits the laser beam to pass therethrough.