The invention discloses a feed additive capable of improving pork quality and flavor and a feed containing the same. The feed additive is prepared by using multiple bioactive substances such as multiple nutrients, multiple traditional Chinese medicines and metallothionein according to a certain proportion, and the feed is prepared by using the additive and a common feed raw material according to a certain proportion. The feed capable of improving pork quality and flavor has a reasonable formula and wide source of raw materials, and is low in cost and easily implemented; the feed has no antibiotics and chemicals, no environmental pollution and no residue of harmful ingredients in the pigs, can improve the physiological function of the pigs, strengthen the constitution and immunity of the pigs, improve the productivity of the pigs and remarkably improve the pork quality and flavor as well as the pig breeding benefit, and is suitable for production of various scales and various types of pork pigs.