The invention discloses enzyme-containing low-emission pig premix and a preparation method thereof. The premix is prepared from negundo chastetree fruits, houttuynia cordata, Chinese angelica, ficus esquiroliana, large-headed atractylodes rhizomes, Chinese milk-vetch, polygonatum odoratum, beeswax, smoked plums, chestnuts, dried flowering peaches, caltrop starch, manyprickle acanthopanax roots, gymnadenia conopsea, shrubberry rhodiola roots, gordon euryale seeds, Chinese Alpine rush, alpinia oxyphylla, rosa laevigata, bromelain, xylanase, papaw biological enzyme, trypsin, glucose oxidase, acidic cellulase, glucoamylase and beta-glucan. The enzyme-containing low-emission pig premix has the advantages that the premix is scientifically compatible, an ideal raising effect can be achieved, the premix is efficient and environmentally friendly, the utilization rate of nitrogen, phosphorus, zinc and copper can be effectively increased, in raising, low emission of nitrogen, phosphorus, zinc and copper is achieved, and good social benefits and economic benefits can be created. The premix is suitable for sows at a gestation period and ablactated piglets, the growth performance of pigs can be improved, the ratio of feed to weight can be decreased, the survival rate of the piglets is increased, and the diarrhea rate of the piglets is decreased.