This study was conducted to obtain accurate data on intake, apparent digestibility and nitrogen balance of dietary protein which the korean take in habitually. Subjects were 8 male college students, aged from 20 to 26, and maintained their menu and life pattern as usual during a 4-week study. The same amount of diet that the subjects had consumped, and feces and urine were collected and measured to extract their nitrogen content data by Kjeldahl method. From above data, the apparent digestibility and the body nitrogen balance were estimated by determining daily protein intake and excretion. The daily protein intake measured by Jjeldahil method was 88.3$pm$ 0.9g(1.45/kg of body weight /day) which marked 8.3% higher than that estimatd by food analysis table. The proportional of animal protein against total protein intake was 50.4$pm$ 2.3%. Daily fecal protein loss was 14.3$pm$0.6g and the apparent digestibility was 83.8$pm$ 0.7%. The urinary nitrogen excretion was 10.30$pm$0.19g. The nitrogen balance considering nitrogen excretion from feces indicated positive balance of 1.06$pm$0.20g.