Recent years have seen a growth in the evidence base on policies and actions to promote health equity. Despite efforts, however, the evidence shows that inequalities are increasing rather than decreasing in many countries. This may partly be due to faulty policy decisions. There is clearly need for a better evidence-based approach on health policies to achieve equity. At the same time, understanding is inadequate on how policy-makers can best make use of the growing evidence base on promoting equity in health. There is a need for stronger links between evidence and health policy-making and implementation. To respond in part to this need, the WHO Western Pacific Regional Office convened the High Level Meeting on Promoting Health Equity: Evidence, Policy and Action from 16-18 October 2007 in Phnom Penh, hosted by the Royal Government of Cambodia, to provide an opportunity to exchange experiences and identify ways to promote the more systematic use of equity research in health policy and action.