This study was designed to determine and report the the protein contents in Korean industrial food eaten in our daily lives. Samples were industrial foods of cereals, legumes, meats, milk, fishes, shellfishes, vegetables, and fruits. The protein contents were determined by micro-kjeldahl method. 1) The content of protein was generally higher in the industrial foods than in the natual foods. 2) The contents of protein in the natural legumes were high compared with that of the industrial foods of meats, milk, fishes and shellfishes. 3) The amount of protein in the industrial foods of vegetables and fruits was very low compared with that of industrial foods of meats, milk, fishes and shellfishes.