The present invention relates to a protection and finish structure of the border of a boat hull with simplified assembly, of the type comprising a profile being extended in a longitudinal direction and a plurality of fixing means for fixing the profile to the hull, distributed along said profile. The fixing means of the structure comprise at least a fast clutch with a tenon and mortise joint wherein a tenon element, fixed to the profile, and a mortise element, intended for being fixed to the hull, have respective tenons and mortise being mutually engaged in a longitudinally sliding way.