Plasma levels of lipoproteins were observed in vegetarians and non-vegetarians in order to compare the values between the two groups with different dietary habits, and among different age groups All 162 vegetarians and 95 non-vegetarians were selected for this study. In detail, male vegetarians subjects were devided into three groups according to their ages, 20`s, 30`s and 40`s. And three control groups were also selected at matching basis. Two groups each were selected for female subjects in their 20`s and 40`s. All ten groups were adopted and the lipids livels were compared appropriately. Plasma pre-β-lipoprotein levels of vegetarians and non-vegetarians were not significantly in all groups. And plama a-lipporoten leves levels of non-vegetarians were higher than the ones for vegetarians as compared with male of 20`s, male 30`s and female of 40`s, and it was not significantly as compared with famile of 20`s. And plasma B-lipoprotein levels of vegetarians were significantly lower than the ones for non-vegetarians in all groups. Most of plasma lipoprotein levels measured were found to be lower in vegetarians and tended to be higher age groups of both vegetarians and non-vegetarians. And plasma a-lipoprotein levels which is known to be adversely related to atheroscherosis were higher in non-vegetarians, it can be concluded in this study that the plasma lipoprotein levels of non-vegetarians under Korea dietary patterns are quite acceptable.