The invention provides a flexible injury-preventing spiral steel wire reinforced anesthetic catheter and a preparation method thereof. The anesthetic catheter comprises a catheter and a catheter joint, the catheter comprises a catheter body and a catheter head, one end of the catheter body is connected with the catheter joint in an insertion manner while the other thereof is connected with the catheter head, the catheter head gradually becomes from soft to hard from the front end of the catheter head to the catheter body, a spiral steel wire is arranged in the wall of the catheter body, and a plurality of medicine outlet holes are formed in the end, connected with the catheter head, of the spiral steel wire. The flexible injury-preventing spiral steel wire reinforced anesthetic catheter has the advantages that the anesthetic catheter is reasonable in structure and novel in design, and the flexible catheter head can bend and put into the body easily without injuring tissues and endorhachis easily, so that operative complications are avoided; the spiral steel wire is arranged inside the catheter body and cannot be compressed during use, so that a smooth passage and good anesthetic effects are achieved; the anesthetic catheter is capable of protecting spinal epidural cavity nerves from being compressed after being put into the body, thereby being high in safety and comfort level.