The invention relates to a mining car for sulphuret of seabed thermal water, which comprises a translational moving mechanism of a self-propelled type, a hydraulic system, a control case, a feed bin, a mechanical arm, a suction hose, an ore hopper, a mining head and a transportation hose, wherein the mining head capable of upwardly and downwardly swinging is arranged on the mechanical arm, the bottom of the mechanical arm is fixed on the front part of the translational moving mechanism of a self-propelled type, the ore hopper is fixedly sleeved outside the mining head, is coaxial with the mining head, has an outward opening and is positioned under the mining head, an opening is arranged on the bottom of the ore hopper and is connected with the suction hose, the suction hose is connected with the feed opening of the front end of the feed bin, the top of the feed bin is connected with the transportation hose, and the hydraulic system and the control case are positioned on the back part of the translational moving mechanism of a self-propelled type. The hydraulic system is electrically connected with the control case, the hydraulic system and the control case are mutually connected by oil paths, the upper part of the hydraulic system is communicated with a safety bladder, and the hydraulic system and the safety bladder fully contain hydraulic oil. The invention has simple structure, low investment, safe utilization and operation and high efficiency, and is suitable for the large-scale exploitation of the sulphuret of seabed thermal water.