The invention relates to an assembled skirting line structure, and belongs to the technical field of skirting line installation. The assembled skirting line structure comprises a plurality of skirting line bodies, the bottom end of a wall surface is horizontally connected with a plurality of connecting blocks in a sliding manner, dovetail strips are horizontally fixed at the bottom end of the wall surface, dovetail grooves are formed in the side walls, directly facing the wall surface, of the connecting blocks, the dovetail strips are located in the dovetail grooves, and reinforcing assemblies enabling the dovetail strips and the wall surface to be firmer are arranged between the dovetail strips and the wall surface; positioning assemblies for fixing the connecting blocks at specified positions on the dovetail strips are arranged between the connecting blocks and the dovetail strips; inserting grooves are formed in the side walls, away from the wall surface, of the connecting blocks, the side walls, directly facing the wall surface, of the skirting line bodies are the back surfaces and are fixedly connected with inserting plates, the inserting plates are inserted into the inserting grooves, and fixing assemblies for fixing the inserting plates into the inserting grooves are arranged between the connecting blocks and the inserting plates; and the front surfaces of the skirting line bodies on the same wall surface are coplanar. The skirting line structure has the effect of improving the firmness degree of the skirting line and the wall surface.