The invention relates to a damaged cable repairing pouring device and pouring usage method. According to the technical scheme, the damaged cable repairing pouring device comprises a drum mold, sealing blocks and a mixing chamber, the two ends of the drum mold are provided with the sealing blocks, and the mixing chamber is formed in the top of the drum mold. The damaged cable repairing pouring device is characterized in that the drum mold comprises a mold body, the mold body comprises an upper mold body and a lower mold body, a mold cavity is formed between the upper mold body and the lower mold body, a fixed plate is arranged at one end of the mold cavity, a push-pull rod fixed block is arranged at the other end of the mold cavity, a sliding block is arranged in the middle of the mold cavity, a push-pull rod is connected to the sliding block, the push-pull rod passes through the push-pull rod fixed block and is connected with a drawing head, a pouring slot is formed between the sliding block and the fixed plate, and the upper portion of the pouring slot is connected with a pouring opening which is connected with the mixing cavity. The damaged cable repairing pouring device and pouring usage method have the advantages that the usage is convenient, and the repairing efficiency and the repairing effect of cables are improved.