The lifting height of the operating table can be adjusted arbitrarily within the specified range, which is conducive to the operation of medical staff and can meet the different needs of various departments of the hospital, especially for general surgery, orthopedic traction, chest, abdominal surgery, ophthalmology, otolaryngology, obstetrics and gynecology, urology and other operations. The operating table and pad are fixed by frame structure, the pad will not move when using, and the pad can be disassembled for easy cleaning and disinfection.