The invention discloses a feed compound enzyme-containing dedicated enzyme for growing pigs and a preparation method of the feed compound enzyme-containing dedicated enzyme, and belongs to the technical field of preparation of enzyme preparations. The dedicated enzyme for the growing pigs is prepared by scientifically compounding aspergillus niger cultures, acidic xylanase, phytase, beta-dextranase, cellulase, amylase, acid proteinase, Chinese herb extracts, a protective agent and an activating agent, wherein the aspergillus niger cells in the aspergillus niger cultures can inhibit the growth of pathogenic escherichia coli, inhibit the growth and breeding of aspergillus flavus, disintegrate the aspergillus flavus, promote the growth of animals, adjust gastrointestinal tract flora to be balanced, and enhance whole immunity during the processes of growth and fermentation, in addition, the fermentation liquid crude enzyme liquid of the aspergillus niger cultures contains different enzyme activity such as protease activity, mannase activity, alpha-galactase activity and pectinase activity, and the dedicated enzyme is specially suitable for being added in the feed for the growing pigs.