Anesthesiology is a science that studies clinical anesthesia, life function adjustment, intensive care and treatment, and pain diagnosis and treatment. Usually used during surgery or first aid. China had already learned anesthesia knowledge in the Eastern Han Dynasty.

According to legend, Hua Tuo was the first doctor to adopt anesthesia technology. He used hemp boiling powder to relieve the patient's pain, and then operated on the patient. ? The first application of anesthesia technology in modern medicine was recorded. 1842 On March 30th, Jefferson City, Georgia, USA, William Morton first applied ether anesthesia in surgery on 1846. Dr Crawford Williamson first used anesthetic when his wife gave birth.

Although modern anesthesiology has only a history of more than 100 years, human beings have been constantly looking for drugs and methods to alleviate the trauma or disease pain caused by disasters or animals in work and life.

There have been legends and records about surgical anesthesia in China for a long time. For example, "Shennong tasted a hundred herbs and encountered seventy poisons a day", which reflected that the ancient people in China had been trying to find a good medicine to cure their diseases for a long time. In the 2nd century AD, Hua Tuo, a great medical scientist in China, invented "Mafengsan". 1700 years ago, Hua tuo had performed abdominal surgery under general anesthesia.