The invention relates to a refrigerator and a heating pipe for the refrigerator. The heating pipe comprises an outer pipe, an inner pipe arranged in the outer pipe, a heating wire arranged in the inner pipe and electric connecting wires connected with the heating wire. Each of the two ends of the outer pipe is further provided with a plug so that openings in the two end portions of the outer pipecan be closed. The two end portions of the inner pipe stretch into the two plugs correspondingly. The electric connecting wires penetrate wire passing channels in the plugs to be led out, and the wirepassing channels are internally provided with sealing pieces used for isolating the wire passing channels from the environment space where the heating pipe is located. Airtight seals are formed at the matched interface positions of the plugs and the outer pipe. A first gas micro channel used for direct or indirect communication of the inner space of the outer pipe and the environment space wherethe heating pipe is located, and a second gas micro channel used for direct or indirect communication of the inner space of the inner pipe and the environment space where the heating pipe is located are formed in each plug, potential safety hazards caused when high-humidity gas enters the wire passing channels and makes contact with the electric connecting wires are avoided, the safety performanceof the heating pipe is improved, and the service life is prolonged.