The objectives of this descriptive predictive research were to study coronary artery disease preventive behaviors and identify its predictive factors among middle-aged men in bangkok. A convenience sampling of 175 middle-aged men were recruited from Diabetic clinic, Hypertension clinic and Outpatient department of Medicine at Police General Hospital, Lerdsin Hospital and Somdejprapinklao Hospital. Data were collected using 8 questionnaires; 1) demographic data form, 2) Stress test, 3) Perceived susceptibility, 4) Perceived severity, 5) Perceived benefits, 6) Perceived barriers, 7) Cue to action, and 8) coronary artery disease preventive behavior questionnaires. Questionnaires number 3 to 8 were validated by 5 experts. Their CVI were 0.83, 0.83, 0.80, 0.84, 0.80 and 0.82, respectively. Cronbach’s alpha coefficients of questionnaires number 2 to 8 were 0.93, 0.76, 0.86, 0.93, 0.81, 0.71 and 0.75, respectively. Data were analyzed using stepwise multiple regression statistics. The finding revealed that 1) coronary artery disease preventive behaviors of middle-aged men in bangkok was at appropiate level (Mean = 97.44, S.D.=12.758), 2) four variables were significant predictors of coronary artery disease preventive behaviors. They were cue to action (Beta = .464), stress (Beta = -.232), education (Beta = .205), and perceived benefits from disease prevention (Beta = .128). They could explain 37.4% of the variance in coronary artery disease preventive behaviors among middle-age men in Bangkok (p <.05). However, perceived susceptibility to coronary artery disease, perceived severity of coronary artery disease and perceived barriers to disease prevention were not able to predict preventive behaviors for coronary artery disease among middle-aged men in Bangkok
