Tilmicosin soluble powder and preparation method thereof

The invention discloses tilmicosin soluble powder, which consists of the following components in parts by weight: 1-50 parts of tilmicosin, 1-50 parts of a solid dispersoid carrier auxiliary material and 0-70 parts of a medical filling auxiliary material. The invention further discloses a preparation method of the tilmicosin soluble powder. The method comprises the following steps of: (1) adding the solid dispersoid carrier auxiliary material into a solubilizing assistant for dissolving; (2) adding tilmicosin, stirring and dissolving; and (3) drying. The tilmicosin soluble powder disclosed by the invention has the advantages of low water content, high solubility, high bioavailability and convenience for administration, and the palatability of animals can be improved simultaneously.