An anesthesia fixing device comprises a fixing bottom plate, a head fixing device is fixedly arranged at the top of the fixing bottom plate, the head fixing device comprises a shell, a first cavity isformed in the shell, a first limiting clamping plate and a second limiting clamping plate are arranged in the first cavity, and arm fixing devices are symmetrically arranged on the two sides of the lower portion of the head fixing device; each arm fixing device comprises a connecting cylinder, a wrist fixing device is fixedly arranged below each arm fixing device, each wrist fixing device comprises a fixing base, a leg fixing structure is arranged below each wrist fixing device, a foot fixing device is arranged below each leg fixing structure, each foot fixing device comprises an outer shell,and a fixing block is arranged at the bottom in each outer shell, a clamping plate is arranged in the outer shell, and an arc instep fixing groove is formed in the clamping plate. The device is beneficial effects the device is simple in structure and convenient to use, all joints of the body can be fixed one by one, the joints are not prone to looseness after being fixed, and secondary injury toa patient is avoided.