The dengue is a priority public health problem. Its prevention is holding in measures of primary care with community participation (PC) to get longer results. The PC is a social process through the citizen to search the community development, to protect collective interests, to identify problems, to guide interventions, to implement and to evaluate strategys. There are some obstacles for PC, like the abscence of public policy about it, the political coustomers, the interventiosn of ilegals groups, the poverty, lack of information, aphaty, lack of leadership, uprooting, distrust and fear. In the control of dengue, PC helps people union for improving the environment, to get public services, breeding places control and educate for the community. To get PC for environment care is the challenge. We show a