In 1960, older persons (65+ years) accounted for only 5 percent of the total world population and this number gradually increased, reaching 8.5 percent in 2016. While the overall world population is aging, the speed of aging is especially fast for the three countries of Northeast Asia, China, Japan and Korea. Facing rapid population aging, several policies or measures are being newly introduced, or existing ones altered, in the three countries. In addition to individual governments' attempts to cope with population aging, there are on-going efforts to promote cooperation between China, Japan and Korea through regular meetings. Since 2010, the Trilateral Policy Dialogue on Aging has been held to share healthy aging policies, experiences, and best practices in China, Japan and Korea. A particularly promising area for cooperation between the three countries would be to develop technologies for the aging society. Also, facilitating international trade in health care and services between the three countries could promote healthy aging in the three countries. Combined with advanced information and communication technologies, an institutionalized framework of cooperation to provide better healthcare and nursing services to the elderlies should be considered as an effective means to cope with aging population in the region.