The invention relates to an improvement on a fire-resisting cable, which is characterized in that a basalt fiber braided sleeve is arranged outside a conductor mica layer. The insulation property and the fire resistance are unified. Both mica and basalt fibers can bear a high temperature of over 950 DEG C and are good insulating materials, so the fire-resisting cable simultaneously has excellent insulating property and fire-resisting performance, a long-term working and using temperature is also greatly improved and an actual working and using temperature can reach over 950 DEG C. A basalt fiber layer is braided outside the mica, so that not only is the cable ensured to still have excellent fire-resisting performance after being moved frequently, but also the insulating layer structure of the cable can be ensured to be complete after the cable is burnt at a high temperature, i.e. the insulating property and the fire-resisting performance of the cable are kept unchanged and the original properties are kept under the conditions of being moved, being burnt, and being at the high temperature. Particularly, a fire-resisting metal sleeve is externally added, so that the fire-resisting cable can withstand the vibration, the impact and the water spraying, the requirements on fire fighting and rescue after a fire occurs are met, and the fire-resisting cable can still be used in a movable place during the fire or after the fire.