BACKGROUND: Ministry of Health and Welfare offered' Home Doctor Registration Program' to rein force primary care and to increase the efficiency of national health delivery system. But, it failed because it was not supported by doctors and nations. We designed this study to develope and evaluate apractical version of 'Home Doctor Registration Program'. METHODS: We invited primary care doctors who were concerned with 'Home Doctor Registration Program' via PC-communication and developed a practical version of this program. After 6 monte of this program, surveys on participated docters and patients were done. RESULTS: 8 primary care doctors and 285 patients have participated in this study. All the 8 doctors have offered the 4 obligatory services and 3 doctors have offered telephone counselling and no doctor has offered visiting examination. After 6 months of this program, CCPQ score was increased significantly and all the health risk factors of participated patients were decreased. Doctors have thought that Family Chart Service, Health Risk Appraisal, Vaccination and Screening Test are more necessary in this program. But Patients have thought that Telephone Counselling and Visiting Examination are more important in this program. CONCLUSION: Almost of participated doctors and patients have been satisfied with this practical version of 'Home Doctor Registration Program'. But, subjective feeling about which service was more necessary in this program was different between doctors and patients.