Essential hypertension is a typical chronic disease requiring adequate and continuous management. Many studies supported that self-care was the essential factor to promote the wellbeing of hypertensives and self-efficacy increased healthy, behavior. The comprehensive self-regulation program was conducted as a nursing intervention on the promotion self-care performance for hypertensives in company. And this self-regulation program was recommended to apply for hypertensives in rural area. The purpose of this study is to identify the general characteristics affecting self-care and interrelationship among the factors including self-care, self-efficacy, HLOC, perceived benefits, barriers and family support. 40 subjects were interviewed from Dec. 1996 to Jan. 1997 and the data was analyzed by the SPSS PC+ program with t-test and multiple correlation to determine the variables affecting the self-care behavior. The results were as follows: 1) Level of self-care was significant difference according to sex(t= -2.27, p=.0l9). religion (t=1.57, p=.055) and smoking habit (t=4.42, P=.000). Perceived self-efficacy was more significantly high among the non-smoking group (t=3.25, P=.000) and female group (t=-2.534, p=.0l3). 2) There were significant positive correlation among the variables: self-care and self-efficacy (r=.5460, p=.000), external-LOC and self-care(r=.2548, p=.056), external-LOC and self-efficacy(r =. 2901, p=.035), self-efficacy and perceived benefits (r=3307, p=.019). And there were significant negative correlation between self-care and barriers (r=-.5438, p=. 000), self-efficacy and barriers (r= - .4153, p=.004). From the above results, it can be concluded that the self-care is more required in male hypertensives and self-efficacy is one of the important factors to increase healthy behavior in cluding self-care. Thus self-regulation program can be recommended in the management of the hypertensives in community settings.