This paper reports the study of Volusia County, Florida eastern coastline for beach erosion. Multi-date data set are obtained to analyze the changes in beach erosion forming 25 year chronology using Change Detection Technique along the Coastline. The study shows many factors that contribute to beach erosion such as hurricanes, tropical storms, human activities, beach driving and development activities. The economy of Volusia County depends on the tourists who come to enjoy the Sun and the beach. This research uses satellite imagery acquired of East coast of Florida that includes the Volusia County, consisting data sets of 1974 MSS, 1988 TM, and 1999 TM. Change detection Technique and Matrix analysis are being used for quantitative changes in the coastline. The percentage of beach loss is more extensive during 1974 to 1989 period as compared to later in 1989 to 1999.