The invention relates to a kind of DHA microcapsule food additive and DHA microcapsule functional food, both of which are made up of core material and capsule wall material. What's unique about the products is that the core material contains the docosahexaenoic acid and/or the compound which docosahexaenoic acid is its component fatty acid. Besides, the ratio of docosahexaenoic acid and icosapentaenoic acid is 7 or higher. The products are low in EPA, pollutants, and offensive smell of fish. So they are quite safe to serve as the additive or functional food for infants and children.