Mammography is the best imaging modality for the detection of early breast cancer in asymptomatic women. However, 10-30% of cases are missed with current film-screen mammography. Digital mammography allows for the separate optimization of image acquisition and display. In addition to the obvious data storage, retrieval, and transmission advantages that digital mammography allows, additional advances such as computer-aided diagnosis, tomosynthesis and dual energy mammography are in development. This review will discuss the technology of digital mammography including detectors and displays, the results of clinical trials comparing film-screen and digital mammography, and the use of computer-aided detection. Digital mammography is a promising new technology for breast cancer detection in the Korean women.