Vietnam has been successful in mobilizing investment capital for development with the social investment rate of approximately 40.5 percent GDP during 2001-2010. However, the investment mechanism in Vietnam, especially public investment has shown a low ability of meeting capital demand for infrastructure investment, low investment efficiency and unsustainability. Restructuring of investment, especially of public investment is among the strategic breakthroughs during 2011-2020 in order to improve growth quality and achieve sustainable development. The paper aims to examine the facts of public investment structure in Vietnam and propose some suggestions to restructure public investment in Vietnam in the context of the economy's restructuring.