The invention discloses a fireproof and flame-retardant power cable. The fireproof and flame-retardant power cable comprises an inner core, a shielding layer, an insulating layer and a sheath layer, wherein the shielding layer is arranged on the exterior of the inner core; the insulating layer is arranged on the exterior of the shielding layer; the sheath layer is arranged on the exterior of the insulating layer; a fireproof layer is arranged between the shielding layer and the insulating layer; a flame-retardant layer is arranged between the insulating layer and the sheath layer; the inner core comprises three conductors and a supporting part; and the space between the conductors and the supporting part is filled with an anti-extrusion material. By adoption of the mode, the fire resistance and the flame retardancy of the power cable can be improved while the mechanical performance is not affected; the power supply capability of the power cable in fire can be improved; and in addition, the fireproof and flame-retardant power cable is relatively low in production cost and suitable for popularization and application.