To provide a winding unit that allows easy maintenance of a bobbin thread trapping and guiding device, a needle thread trapping and guiding device, and a drive mechanism for turning both guiding devices, from an outer surface on one side of a unit frame.

A thread piecing device 12 for piecing a bobbin thread as a thread end on the side of a thread feeding bobbin 4 and a needle thread as a thread end on the side of a package P, a bobbin thread trapping and guiding device 16 for supplying the bobbin thread to the thread piecing device 12, and the needle thread trapping and guiding device 17 for supplying the needle thread to the thread piecing device 12, are arranged on the outer surface on one side of the unit frame 2. The bobbin thread trapping and guiding device 16 is configured to be vertically turned by the first drive mechanism 27, and the needle thread trapping and guiding device 17 is configured to be vertically turned by the second drive mechanism 47. Each of the first drive mechanism 27 and second drive mechanism 47 is arranged on the outer surface on one side of the unit frame 2.