In metropolitan areas, homelessness is part of the community and also a problem to local government which need to address or end. To end the homelessness, the profit, nonprofit organizations and local government are providing shelter, mental health service and food to homeless people. But there are still a lot of homelessness loitering and sleep in the street. Except the help from profit, nonprofit organizations, how can we as a resident to help ending homelessness. The best is we learn how to outreach homelessness and understand their situation and experience. But what is the best way to successfully outreach homelessness? This project seeks to determine what is the best way to outreach homelessness and the barrier which will experience when outreaching homelessness, through a comprehensive literature review, interviews with profit and nonprofit organizations.