The invention discloses a feed for increasing the content of alpha-linolenic acid in pork and a method. The feed for increasing the content of alpha-linolenic acid in pork comprises a feed A or a feedB, wherein the feed A comprises 45-55 parts of corns, 5-10 parts of flaxseed bran, 0.55-1 part of amino acid, 0.1-0.4 part of composite vitamins, 0.1-0.4 part of soybean lecithin, 6-10 parts of portulaca oleracea, 4-5 parts of dandelion, 5-6 parts of plantain herb, 1-3 parts of hawthorns, 7-10 parts of sesame flowers, 10-15 parts of sticky rice and 6-8 parts of rhizoma atractylodis; the feed B comprises 45-60 parts of corns, 15-20 parts of flaxseed bran, 0.55-1 part of amino acid, 0.1-0.4 part of composite vitamins, 0.1-0.4 part of soybean lecithin, 6-8 parts of wild chrysanthemum flos, 6-8 parts of dandelion, 7-10 parts of plantain herb, 2-6 parts of hawthorn, 2-6 parts of folium artemisiae argyi, 8-12 parts of rhizoma atractylodis and 8-12 parts of negundo chastetree fruits. According to the technical scheme provided by the invention, by putting the flaxseed bran into the feed and using the feed together with traditional Chinese herbal medicines, the content of alpha-linolenic acidin pork can be increased.