The embankment is one type of habitat that was used as a place for the cultivation of brackish water which is located in the coastal region. Embankment in Indonesia especially in Semarang City usually produce fishery products which have high economic value export oriented. High price products results of riparian fishery enough public interest to plunge in cultivation embankment. The spread of the embankment in the city of semarang is commonly found in the coastal area, a region bordering the sea. The number of farmed area from year to year is definitely changing. This is caused by several factors such as the opening of land farmed, abrasion, high tide, sea water diversion function of land farmed and other factors either natural or caused by humans. Then it is necessary to know the percentage of the amount of the spread of the embankment from year to year, with deployment of GIS.In the current study utilizes image data from landsat 8. The next step is to create a map of the spread of the Embankment by using GIS software namely ArcGIS. And then taken a point sample research, which provided the reference point control the whereabouts of the embankment. This research resulted in a distribution map of the location of the embankment and comparisons from the year 2000 by 2015, which is expected to help the Government town of Semarang or public who need to know the changes that occur in the above 2000-2015. And in the reference was made in a study.From the research that has been done can be drawn the conclusion that the widespread distribution of embakment from the year 2000 to the year 2015 is a pretty drastic decline. Of the total surface area of embankment in the city of Semarang in 2000 i.e. covering an area of 2,664.97 hectares. And by 2015 be 2,308.78 hectares. With such far-reaching changes distribution of embankment experience a decrease of about 356.19 hectares spread over several districts in the city of Semarang.