The invention belongs to the technical field of mining machines and discloses a mining individual hydraulic prop repairing and grinding device. The device comprises a grinding unit, a sand blasting unit and an oxidation tank unit. Grinding plate belts are arranged at the upper and lower ends of the grinding unit correspondingly. Grinding wheels are mounted on the periphery of the grinding unit. Awaste material conveying pipeline is mounted in the position where the grinding plate belts are connected with the sand blasting unit. A grinding miller is arranged in the conveying pipeline. The sandblasting unit is arranged at the rear ends of the grinding plate belts. A cavity groove is formed in the middle of the sand blasting unit and filled with a grinding medium. A sand blasting port is formed in the rear end of the sand blasting unit. An oxidation tank is mounted on the right side of the sand blasting unit. According to the mining individual hydraulic prop repairing and grinding device, through the waste material conveying pipeline, waste materials produced by the grinding unit are collected and conveyed into the grinding miller in the middle of the conveying pipeline, the waste materials are ground into fine particles in the grinding miller and sprayed into the sand blasting unit through the sand blasting port, the waste materials are recycled, the cost is lowered, and the environment is protected.