The invention relates the seaming machine which can bidirectional sew face fabric, comprising engine base (6), body, upper axes (3) and servo-motor (4). The machine head (1) can clockwise turn for 90Deg, rotating shuttle (10) in engine base (6) and axis shaft line of revolution axis (13) is driven by rotating shuttle servo-motor (17), the feeding lifting frame parallel with upper axes (3) is driven by frame motor (16) through rotation shaft (15) and lifting cam (8). The seaming machine can sew at either side of needle. The invention has the advantages of simple structure and reducing the assembly difficulty and cost.