Pipeline drag hook

The utility model provides a pipeline drag hook which comprises a first drag hook body and a second drag hook body which are oppositely arranged, the first drag hook body is provided with a first connecting part capable of being connected with a spreader, and the first connecting part is provided with a first fixing hole channel communicated with the inner wall of the first drag hook body. An optical fiber can be inserted into the first fixing hole channel and kept at a first preset illumination angle; the first fixing structure is arranged at the upper end of the first drag hook body and inclines upwards, and the optical fiber can be lapped on the first fixing structure; the second retractor body is provided with a second connecting part capable of being connected with the spreader, the second connecting part is provided with a second fixing hole channel communicated with the inner wall of the second retractor body, and the second fixing hole channel can allow the optical fiber to be inserted and keep at a s