The invention discloses a medicine supply anesthesia device used in the clinical anesthesiology department. The medicine supply anesthesia device comprises an anesthesia machine, wherein one side of the anesthesia machine is movably provided with a breathing machine, one side of the breathing machine is provided with two joints, corrugated pipes sleeves the two joints in a connected way, one sideof the anesthesia machine is movably provided with a protective box through an installing rack, one end of each of the two corrugated pipes extends into the protective box and is movably connected with the same breathing cover, and one side of the breathing cover extends to the outside of the protective box. The breathing cover can be effectively protected when being not used, the problem is effectively avoided that the breathing cover is exposed in the air for a long time, dust is attached to the breathing cover or the breathing cover is contaminated or damaged, the cleanliness of the breathing cover is ensured, and the service life of the breathing cover is prolonged. In addition, when the corrugated pipes are connected in a sleeving way, common hoops adjusted through bolts are not used,accordingly the problem is avoided that the poor fastening effect of bolts is caused by abrasion or dismounting is inconvenient due to rusting, and the demands of people are met.