Sleeve grouting connecting joint, connecting structure of prefabricated component and construction method of connecting structure

The invention provides a sleeve grouting connecting joint, a connecting structure of a prefabricated component and a construction method of the connecting structure. The sleeve grouting connecting joint comprises a sleeve, a first steel bar, a second steel bar, reinforcement assemblies and a grouting material. The first steel bar and the second steel bar stretch into the sleeve from two ports of the sleeve correspondingly. Multiple transverse ribs distributed at intervals are arranged on each of the first steel bar and the second steel bar. A cavity of the sleeve is filled with the grouting material. The parts/part, stretching into the sleeve, of the first steel bar and/or the second steel bar are/is anchoring segments/an anchoring segment, and each anchoring segment is provided with one or multiple reinforcement assemblies in the longitudinal direction of the anchoring segment. On the basis of not reducing steel bar performance, one or multiple reinforcement assemblies distributed atintervals are additionall