The paper briefly states the library automation development in Taiwan Area from the enlightenment (1961-1970) , budding (1971-1980), National planning (1981-1990) to the resources sharing (1991-) periods, introduces the three main networks in taiwan Area that are closely connected with the library automation development, namely, TANet, HiNet and SEEDNet, and indicates the future possible trends of the library automation development as follows:1.to render individualized service in accordance with the actual demands; 2.to offer network-to-network information sharing; 3.to provide global digitalized information, and 4.to sponsor information orientation for people of all walkes of life.