The invention discloses an ocean engineering cable recycling device. The ocean engineering cable recycling device comprises a box body, supporting legs are arranged at the bottom of the box body, a water tank is fixedly connected to the top of the box body, and a water suction pump is fixedly connected to the left side of a base on the inner wall of the water tank. According to the ocean engineering cable recycling device, by providing a spraying mechanism, at the moment, water enters a water pipe in the interior of an arc-shaped block of the spraying mechanism, the water is conveyed into a second fixing block through a branch water pipe, the second fixing block conveys the water into two openings through two first arc-shaped water pipes, however, due to the fact that the pressure of internal water cannot pass through a one-way valve, water continuously enters the openings at the moment, along with the increase of the water inflow amount, a square block can be pushed out; fixed rods move together to outside and stretch to a second spring at the same time, at the moment, the square block stretches out to the limit distance, then water is sprayed out of a one-way valve due to the fact that the internal water pressure is too large, the water is sprayed to clean and wet the surface of an engineering cable, and a rolling mechanism and a scraping mechanism can work conveniently.