In the extensional faulted basin，the displacement transfer between faults is enabled through the transfer zones to realize the conservation of regional extensional stress. The transfer zones of Lishui Sag in the East China Sea shelf basin are well developed，exerting a vital influence on the sag structure. Based on the systematic investigation into research status of transfer zones and the interpretation of regional structures in Lishui Sag，the locations，types and characteristics of the transfer zones in Lishui Sag were analyzed in detail through structural analysis，fault analysis，fault growth process recovery，fault displacement-strike curve and other methods. As a result，three main types of transfer zones were identified：relay ramps，transfer faults，and accommodation zones. It is believed that the transfer zones are the main reason for the sharp change in the strike of the main Lingfeng Fault of Lishui Sag and the transition of the sedimentary center in the basin，and the western sub-sag of Lishui Sag is divided into the north and south structural belts. Then the influence of the transfer zones on the process of sediment input into the basin and its control on the reservoir are studied. It is considered that the relay ramps between major boundary faults in Lishui Sag constitute a favorable accumulation zones.