Pigs are suitable experimental animals for many surgical techniques[1-4].Shumianning Ⅱ is compound anesthetic which cantain ketamine,xylazine and midazolam and can be only used for swine anesthesia.The purpose of this study was to evaluate the effects of Shumianning Ⅱ administered by continuous rate infusion using microinjection pump[5] on anesthetic quality,cardiopulmonary function and biochemistrical values in minipigs.