Abstract: The content-based image retrieval technique has widespread application in many domains such as in digital archives, information security,prevention of crime,intellectual property rights,medical diagnosis.This paper elaborates the research significance and the research present situation of the content-based retrieval technique,and introduces emphatically the content-based image retrieval technology and the significance of it＇ s application in digital archives construction.

Key words: image retrieval technique;digital archives;construction of digital archives