To provide a convenient steel pipe press-in/extracting device for efficiently and safely performing press-in and extracting work of a steel pipe.

This steel pipe press-in/extracting device is composed of a stand 7 forming a frame shape so as to surround the steel pipe 1, a steel pipe holder 10 for surrounding and sandwiching the steel pipe 1, a steel pipe sandwiching lifting member 13 composed of a pair of circular arc-shaped arm materials 12 liftably supported above the steel pipe holder 10 by a lifting guide member 11 erected on the stand 7, and a work platform 17 positioned above the steel pipe sandwiching lifting member 13, liftably supported by the lifting guide member 11, provided with a floorboard 15 for a scaffold so as to surround a central work space 14, implanting a fall preventive handrail 16 on the outer edge and lifting by following after the steel pipe sandwiching lifting member 13.