Abstract: Based on the status of mechanized medicated bath of livestock in pastoral area of Inner Mongolia and comparison of medicated bath technology at home and abroad, a new type of livestock medicated bath equipment 9YY-B-X was designed.Compared with the other equipment, this newly developed equipment had advantages in animals inputting during the medicated bath operation. Meanwhile, the medical solution could be filtered and reused with this equipment. The 9YY-B-X medicated bath equipment could be driven by dual power, which is applicable for the mechanized medicated bath of livestock in pastoral area with or without electric network coverage. In the present study, we introduced the basic structure, working principle, primary mechanical design and technology parameters of this equipment, and subsequently tested and examined its working performance.The results showed that the uniformity coefficient, operation duration for single medicated bath, surface air permeability,production efficiency and the other main indicators all in accordance with the design requirement, and the medicated bath effect met the livestock production demand.