In order to overcome such shortcomings as great inertia and small workingspace existing in parallel mechanism,the flexible cable is adopted as the traction element of parallel mechanism to take place of connecting rods. Meanwhile,the design concept of flexible cable parallel mechanism is also introduced. With the combination of them two,a new configuration of parallel mechanism driven by the rigid-flexible coupling is put forward,which brings the advantages of the two mechanisms into full play to improve the performance of the new configuration. It possesses not only the merits of high rigidity,high precision and high load capacity of the parallel mechanism but also the advantages of low weight which is possessed by flexible cable. Besides,the freedom from the limitation of hinge angle increases the workingspace of the mechanism.