The purpose of this study was to find the sociopsychological factors influencing the compliance of dietary regimen in diabetes by using focus group interviews. The data were collected from fifty three diabetes patients in eleven focus groups from September 1997 to March , 1998 in Seoul and Suwon Korea. The interviews were tape-recorded and the contents of the interviews were analysed by researchers. The subjects knew the causes, complications, and therapies of diabetes although they were incorrect at times . Patients had a wide range of outcome expectations from very optimistic to pessimistic. They recognized diabetes as a disease which needs life-time care, and they though that good care could provide a normal life. One the other hand they thought diabetes could lead to death through complications, and cause financial problems as well as social isolation. As for self-efficacy they recognized the importance of compliance to diet regimen but they thought the diet therapy was very difficult and were not very willing to follow it. They felt medical professionals, especially doctors, were influential for the therapies. However they frequently felt counselling provided by doctors was insufficient in time and content and led to attitude problems. They felt support from families and others was often insufficient and inadequate. Nutrition education fostering outcome expectation, social support, and self-efficacy is needed to increased compliance. The most influential referents were medical professional including doctors, nurses, dieticians, so their role in diet therapy should by emphasized