The invention relates to a feed additive capable of strengthening the juicy property of pork and a preparation method of the feed additive. The feed additive is prepared from the following raw material components in parts by weight: 20-35 parts of bee pollen, 18-25 parts of propolis, 16-20 parts of vitamin E, 10-15 parts of saccharicterpenin, 10-15 parts of chitosan and 8-10 parts of citric acid.The preparation method comprises the following steps of preparing raw materials according to the formula of the feed additive, then mixing the bee pollen with the vitamin E, the saccharicterpenin andthe chitosan to obtain mixed materials, then adding the mixed materials to the citric acid and the propolis, performing uniform stirring, performing baking, and performing crushing so as to obtain thefeed additive capable of strengthening the juicy property of pork. Compared with the prior art, the feed additive disclosed by the invention can improve the growth properties of pigs and improve thequality of pork, the effects of maintaining meat color fresh, maintaining juicy property and preventing the pork from rancid can be achieved, and the production benefits can also be increased.