The invention discloses a wind-up attaching type gasket device for pipeline welding, and mainly aims to provide a pipeline welding auxiliary tool used during welding of pipelines with medium and smallcalibers and used for improving the welding quality. The wind-up attaching type gasket device for pipeline welding is characterized by comprising a sheet gasket which is made of copper alloy and areused for plugging a pipeline welding groove, a sliding pad, an elastic sheet, a gasket guide wheel, a long shaft, a guide wheel pin, a support barrel, two bearings, a wheel support, a small wheel, a pin shaft, a connecting barrel, a swing handle, a torque screw, a fixing frame and a T-shaped screw. According to the gasket device, the radial size is relatively small, the wind-up gasket is utilizedto be expanded to attach on the inner wall of a steel pipe so as to achieve the purpose of plugging the welding groove so that the gasket device can be applied into medium-and-small-caliber pipeline welding construction, and the gasket device is simple in structure and convenient to use.