Abstract: Coastline is an important identity of border between land and water. Coastal zone is the first marine economic regions of China. It is important to study the coastline changes due to the significance of coastal ecosystem.
In this paper, Landsat TM/ETM remote sensing image data of Fujian in 2002, 2006 and 2010 was used. Based on 
RS ( remote sensing ) and GIS technology, The coastline was respectively extracted with methods of visual interpreta
tion and automatic interpretation. The coastline changes and its reasons were analyzed and summarized based on o
verlay analysis and statistics. It showed that the total coastline in Fujian province during 2002 and 2010 had in
creased 291 . 84 km and it kept on growing. Great changes of coastline are in areas of Sansha Bay and in vicinity of
 Quanzhou in addition to the changes in Xiamen Island. Landfill , sedimentation , port and fishery infrastructure constructions are important factors for the coastline growth.