Currently, the incidence of dengue increased, although prevention programs be put into the national health objectives aimed at raising awareness of the people about dengue prevention, and particularly communication health education is of primary concerns. Although communication dengue prevention is done regularly but not highly effective because fewer people are interested or not paying attention so did not improve the situation of dengue disease, patients continue to have increasing. Especially in District 8 incidence of dengue in the city forefront in recent years. Research conducted to find effective measures for health education and can actually alter the knowledge and practice of the people. Methods community intervention studies to determine the effectiveness of communication in the household increases the knowledge and practice about dengue prevention of residents in Ward 4, District 8, HCM city questionnaire prepared by. The study results showed that knowledge and behavior prevention of dengue fever have improved people before and after the intervention. Research findings as the basis for the proposed plan communication activities improve the efficiency of future disease prevention, and dengue prevention measures implemented in the community.