A survey was carried out to investigate consciousness level of health. A total of 499 people living in Seoul and the vicinities were asked to fill out the questionnaire during the period from the October 1997 to the January 1998. Among the 532 answers collected 33 was imcompleate data, and 499 answers were used for the statistical analysis by using SPSS program. The most worried disease was cancer(27.6%), indigestion(23.0%), liver trouble(14.8%) and high blood pressure(14.8%). The perception of Korean on health and food habit indicated that food habit was considered the most important factor for the maintenance of health, as appeared in 28.9% of the subject. Eighty-seven percent of the respondents thought that health food is necessary for the health.