On the Chigasaki coast, Kanagawa Prefecture, beach nourishment has been continuously carried out by putting sand along the shoreline from the hinterland to recover a sandy beach. In this method, beach users cannot reach the shoreline from the cycling road located in the hinterland, because high scarp is continuously formed along the shoreline. Also, the high scarp caused the feeling of pressure to the beach users. To reduce the minus damage, a new method (continuous beach nourishment in a designated area) was proposed, in which beach nourishment is carried out in a designated narrow area and sand is supplied from this area to the nearby areas by longshore sand supply. In this method, beach nourishment area is restricted, so that the longshore length where scarp is formed can be narrowed relative to that in ordinary beach nourishment. The effectiveness of the new method relative to the ordinary method of beach nourishment was clarified by the numerical simulation using the BG model.