Brachial plexus block is achieved by about three methods of localization, namely, interosseous groove method, supraclavicular approach method, and axillary approach method. Each method has its own advantages and disadvantages: the interosseous groove method is simpler to localize and has fewer complications, but the block of the ulnar nerve is less effective. The supraclavicular block is a simple method and can easily lead to pneumothorax, so there is some risk. The axillary approach is simpler, but the block is narrower. So these three methods can be used and anesthesia can be administered according to the patient’s situation weighing the pros and cons.