Covid 19 is a deadly infectious disease caused by the corona virus, which is still a global pandemic. The purpose of this study is to determine the effect of self management education on changes in people's perceptions and knowledge in East Java. One effort to change perceptions and knowledge of the breaking of the covid 19 chain was carried out with a self management education approach. Methods: Quasi-experiment one group pre and post design in patients who visited polyclinic 3 hospitals in East Java as many as 150 respondents were divided into 2 groups: 75 respondents in the control group and 75 respondents in the treatment group. Sampling through simple random sampling technique. Pretest data collection to identify perceptions and knowledge, then the intervention of self management education was carried out and finally posttest conducted. Pretest and posttest data collection included closed questionnaire, data analysis was performed with Mann Whitney U test and Wilcoxon signed rank test. Result: Changes in perception and knowledge a significant after self management education in hospitals at East Java. Conclusion: self management education able to change the perception and knowledge of patients about covid transmission 19. In the future it is necessary to research more deeply about the behavior of the community towards the breaking of the covid 19.