High-fire-resistance cable with early warning function

The utility model discloses a high-fire-resistance cable with an early warning function, and the cable core is isolated from the air through the arrangement of an oxygen isolation layer which wraps the cable core, thereby preventing the cable core from burning due to high temperature when the cable is on fire. By arranging the fire insulation layer wrapping the oxygen insulation layer and arranging the fireproof layer in the cable core, the fireproof performance of the cable is further improved; the outer protection layer wrapping the fire insulation layer is arranged on the outermost layer, and the outer protection layer and the internal structure jointly form a compact cable structure, so that the extrusion resistance and impact resistance of the cable are improved; by arranging the alarm device on the outermost outer protective layer, the cable can give an alarm in time when encountering a fire, casualties and property loss are reduced, and the cable can be widely applied to the technical field of cables.