The invention discloses a mooring structure for a deep-sea corrosion subsurface buoy system, and relates to the technical field of deep-sea detection. The problem that equipment sinks to the seabed due to mooring rope breaking or accidents occurring is mainly solved, the mooring structure includes a main floating body, a plurality of corrosion subsurface buoys, a releaser and an anchor block, themultiple corrosion subsurface buoys are connected mutually through a mooring rope, the main floating body is connected with the corrosion subsurface buoy at the top end through a mooring rope, the anchor block is connected with the corrosion subsurface buoy at the lowest end, the releaser is arranged between the corrosion subsurface buoys and the anchor block, and conversions for releasing torquegenerated by a corrosion subsurface buoy system during operation are arranged between the main floating body and the corrosion subsurface buoys. According to the mooring structure, the structure is simple, reasonable and reliable, the reliability of recycling is improved, and successful recycling of the corrosion subsurface buoys is effectively ensured.