The invention discloses a distribution line insulator and wire fixing device, which comprises a clamping seat, support arms and a clamping head. The clamping seat is provided with a fixing device thereon. The clamping seat comprises two seat frames arranged in parallel. The fixing device used for fixing and connecting is arranged between the two seat frames. Both ends of each seat frame are provided with support arms movably connected therewith. The upper end of each support arm is provided with the clamping head. The inner surface of each clamping head is in the shape of an arc surface. The distribution line insulator and wire fixing device in the invention is mainly used for fixing an insulator and a wire in a distribution line and a distribution transformer bench. When the distributionline insulator and wire fixing device is in use, the seat frames are connected with a rod insulator tip column handle, the clamp heads are clamped onto the wire, and the seat frames are fixed and connected by the fixing device. The distribution line insulator and wire fixing device can effectively fix the wire and prevent the wire from loosening, and only the support arms are needed for differentoccasions of use since the support arms are movably connected with the seat frames. The angle between the support arms and the seat frames can also be fine-tuned, the applicability is wide and the useis easy.