Submarine cable limiting device

The invention provides a submarine cable limiting device. The submarine cable limiting device comprises a supporting and adjusting assembly, a main body and an adjusting mechanism, the supporting and adjusting assembly is fixedly arranged on the seabed, the main body is arranged on the supporting and adjusting assembly, and a limiting part is arranged at the top of the main body and used for placing a cable; the adjusting mechanism comprises a plurality of closed containers, the containers are distributed at different positions of the body in the horizontal direction respectively, liquid is contained in the containers, a guide pipe is connected between every two adjacent containers, and the guide pipe connected to each container is communicated with an inner cavity of the corresponding container so that the liquid can flow in the two adjacent containers in a siphon mode. And the liquid levels in different containers are changed, so that the posture of the main body is adjusted by the containers. According to