Protection structure of underwater manifold

The invention relates to a protection structure of an underwater manifold. The protection structure of the underwater manifold comprises a top protection structure and a peripheral protection structure which is installed below the top protection structure, wherein the top protection structure is formed by a steel plate and stand columns installed around the steel plate in a connecting way; the peripheral protection structure is formed by a plurality of diagonal bracings in a connecting way. The protection structure of the underwater manifold has the advantages that not only can the underwater manifold be protected and can the underwater manifold be effectively prevented from being damaged by load of falling object impact, fishing net towing and the like, but also the safety, reliability and continuity of underwater operation for oil-gas field production are improved; the overall weight of the underwater manifold structure is reduced and the requirement on the installation capacity of a construction ship is reduced.