South Backstreet starts from Yangqiao Alley in the west and end in the south with Jibi Alley with a length of 1000 meters. It is the central shaft of Three Lanes and Seven Alleys, with the tree lanes in the west and seven alleys in the east. It is the main business street in the past dynasties in the area with shops of all walks of life from the daily necessaries of rice, salt to cultural products of books, mounting works, festive lanterns and the like. Today, some old and famous shops which operate traditional business are recovering, and modern elements of café and pubs are also added into the new street.