Purpose: The purpose of this study was to verify the influence of health point system on the lifestyle among the patients with chronic diseases listed in iCDMS, a project of the Incheon Metropolitan Center for Chronic Disease Control and Prevention. Methods: The data were collected 1,000 persons among the patients listed in iCDMS from March 16, 2009 to December 21, 2010 by telephone survey. The data were analyzed by descriptive statistics, ${chi}^2$-test, odds ratio and logistic regression with the SPSS 18.0 program. Results: The higher the percentage of the accumulation of the points of necessary medical examinations they have, the better the lifestyle the participants practice moderation in drinking, exercise, and diet (p<.05). Also the higher the percentage e accumulative points of education and visit, the stronger the intention to improve the lifestyle such as for example, receiving the guidance of no smoking, giving up drinking, or being conscious of nutrition and obesity (p<.05). Conclusion: This study suggests that the motivation through an incentive system can increase self-care make an effect on the care of patients with chronic diseases.