The invention discloses a steel bar grouting sleeve for ductile connection of fabricated concrete structures, comprising two sections of the sleeve, a grouting hole and a grouting hole. The first section of the grouting sleeve is used as a connector for steel bars and is used to connect different components The second section of the through sleeve is the through tube of the steel bar, which is used for the steel bar to pass through the post-cast layer, and the two sections of the sleeve are connected by threads. The grouting hole is located at the lower part of the first section of the grouting sleeve, and the grouting hole It is arranged on the upper part of the second through-sleeve. The biggest feature of the steel bar grouting sleeve provided by the present invention is that the grouting sleeve is a combined type, and the overhanging steel bar of one prefabricated component passes through the post-cast layer through the second section through the sleeve, and is inserted into the first section of another prefabricated component. The grouting sleeve is then grouted to connect the steel bars between different prefabricated components to ensure that the longitudinal steel bars can effectively transmit force, so that the position of the grouting sleeve can also make the connection part have the required plastic deformation capacity when it enters the plastic state. In addition, using the steel bar grouting sleeve provided by the invention also has the functions of fast, efficient, simple and convenient for construction operations, thereby ensuring construction quality, improving construction efficiency and reducing construction difficulty.