Deep sea polymetallic nodule mining test system

A deep sea polymetallic nodule mining test system disclosed by the present invention comprises a mining vehicle mother ship, a mining vehicle and a first connection cable connecting the mining vehicle mother ship and the mining vehicle, the mining vehicle is provided with an ore collection mechanism, the ore collection mechanism comprises a telescopic conveying channel and a collection head, the telescopic conveying channel is provided with a telescopic driving mechanism, and the collection head is connected with the telescopic driving mechanism. A height probe is arranged on the collecting head, and a laying and recycling mechanism which can carry an ROV and can lay and recycle the ROV to detect the surrounding environment of the mining vehicle and assist the mining vehicle in mining operation is further arranged on the mining vehicle. The deep sea polymetallic nodule mining test system has the advantages of being high in collection efficiency, accurate in collected data and capable of reducing pollution. 本发