The invention relates to a garment circulation line transport system, which comprises a rack and a plurality of transport units, wherein the rack extends along the direction of a garment circulation line, the transport units are orderly arranged in parallel along the direction of a long shaft of the rack, each transport unit comprises a middle main flow area, a material receiving area and a material feeding area which are respectively arranged on the two sides of the middle main flow area, the material receiving areas and the material feeding areas of two adjacent transport units are arranged in a staggered mode, the middle main flow areas comprise a plurality of transport rolls and a turnover rotating basket positioning lifting mechanism, the transport rolls are orderly isometrically arranged in parallel along the transport direction, the turnover rotating basket positioning lifting mechanism comprises a pair of top rods which are alternately arranged in parallel, and each top rod is inserted between two adjacent transport rolls. The garment circulation line transport system has the advantages that the garment circulation line transport system guarantees normal production sequence and efficiency of an assembly line through the transport units which are orderly arranged in parallel along the direction of the long shaft of the rack to complete garment line production, and improves whole production efficiency.