The livelihood of people in coastal zones changed from salt production to farming in the turn of the Ming and Qing dynasties. This transformation also provided a variety of options for the reconstruction of coastal society. The agricultural development in Sand Fields has become the main livelihood of local coastal people in Xiangshan county since the 18th century. After the shutdown of Xiangshan Salt field in 1789，the history of the salt field in Ming dynasty was reawakened and became an important resource to build local order，which was completely different from the situation of refusing to producing salt in the early Qing Dynasty. Many cases show that the history memory of salt fields in Xiangshan coastal area was formed under the background of local Sand Fields’ Development after the mid-Qing Dynasty. With the development of clan construction，the coastal crowd used the local system of salt fields to formed a new local power structure.