The invention relates to an environment-friendly fire-proof cable. The environment-friendly fire-proof cable comprises a cable main body, limiting through holes, cable cores and a fire-extinguishing powder tank, wherein supporting columns are inlaid into the inner ring of the cable main body; spongy layers are fixed to the inner sides of the supporting columns; the limiting through holes are formed in the outer walls of the spongy layers; the inner sides of the spongy layers are connected with heat flowing nets; an anti-corrosion ring is fixed to the tail ends of the heat flowing nets; a moisture-proof layer is arranged on the inner side of the anti-corrosion ring; the cable cores are mounted on the middle part of the inner side of the moisture-proof layer; separating rods are fixed between the cable cores; the fire-extinguishing powder tank is fixed above the cable cores; mounting frames are inlaid into the outer wall of the cable main body; anti-cracking rings are mounted on the twosides of the mounting frames; fluorescent layers are arranged on the inner sides of the mounting frames. The environment-friendly fire-proof cable has the beneficial effects as follows: through arrangement of the supporting columns on the inner ring of the cable main body of the environment-friendly fire-proof cable, the firmness of the overall structure of the cable can be improved, so that the cable is avoided from being deformed by external pressure.