The invention relates to a coaxial cable insulation layer stripping device capable of metering length and belongs to the field of cable processing and production. The coaxial cable insulation layer stripping device is formed by a beam bracket, a weighing bracket device, a hot melt machine support, a hot melt machine, a length measuring and stripping device, a fixation disc support, a motor, a fixation disc, a rotation drum disc, a rolling bearing, a taper rotation drum, a taper plug, a hand-cranking handle, a rotation drum support and a wire clamping rod. The device belongs to the field of cable processing and production. The device can realize real-time length measurement of the stripping cable, thereby reducing length measurement process and saving processing time; the device can realize real-time weighing of the cable to be stripped to record scrap weight, thereby facilitating calculating waste scrap information; by heating the hot melt machine, a hardened insulation layer is subjected to softening processing to enable the insulation layer to be stripped easier.