The utility model discloses an integrally-cast lifting lug structure of an offshore box, and relates to the technical field of offshore boxes. The lifting lug is integrally formed on the upper end face of the base part, the through hole is formed in the center of the lifting lug, an inclined slope is arranged at the upper end of one side of the lifting lug, and the inclined slope is of an arc-shaped structure; and the offshore box part is arranged at the lower end of the base part, and a
locking mechanism is arranged in the offshore box part. According to the lifting lug
assembly, the base piece and the lifting lug are of the cast integrated structure, the
welding work of the base piece and the lifting lug is omitted, the number of
welding beads can be reduced, meanwhile, the flaw detection
workload can be reduced, the strength of the whole lifting lug
assembly is improved, the lifting lug can be reinforced through the arranged reinforcing ribs, and the service life of the lifting lug
assembly is prolonged. And the arranged reset spring and the baffle piece can push the
locking plate to be clamped with the connecting groove, so that the position of the connecting piece can be limited, the connecting piece can be prevented from deviating and shaking, and the base piece can be rapidly installed and limited.