The invention relates to an underwater suspension cluster type manifold system with flexible jumper tubes inside. The underwater suspension cluster type manifold system with the flexible jumper tubesinside comprises a cluster type manifold main body, a buoy, a plurality of I-shaped channels, the flexible jumper tubes and a mooring system; the buoy is arranged on the bottom of the cluster type manifold main body; the I-shaped channels are arranged in the buoy; manifold branch tubes on a production hub seat are separately connected with the I-shaped channels; the far ends of the flexible jumpertubes are separately connected with dry type underwater Christmas trees in a plurality of deep water functional cabins fixed on the seabed by first automatic connecting-tripping devices while the near ends of the flexible jumper tubes are separately connected with the manifold branch tubes on the production hub seat; and the far end of the mooring system is fixed on the seabed while the near endof the mooring system is connected with the cluster type manifold main body through a second automatic connecting-tripping device. The problem that a traditional underwater cluster type manifold is unlikely to discard and recycle, and cannot be reused is solved, particularly, a large underwater foundation structure is avoided, costs for mounting of an underwater foundation of a traditional manifold are greatly reduced, the costs are reduced and the efficiency is improved, and a new-generation underwater collecting and delivering original concept of 'easiness in recycling and reusability' is established.