The steps of root canal staking are roughly the steps of killing the nerve, opening the staking channel, making the core of the staking, and making the crown of the tooth. 1. Nerve killing: Nerve killing is to open the tooth and put the inactivator into it, and then seal it with temporary sealing material, so that the inactivator can penetrate into the nerve and cause necrosis of the nerve. After perfect nerve killing treatment, the root tip inflammation subsides and the patient has no discomfort symptoms before starting the piling. 2. Staking: Remove decayed and weak tooth tissue, expand the root canal step by step with a P-drill, clean the inner wall of the root canal completely, and prepare the tooth into a certain shape. If more than one canal is needed, it is necessary to check whether they are in the way of each other and the order in which they are placed. 3. Staking: According to the type of staking chosen by the patient, a fiber stake of appropriate size is directly implanted and fixed, or a negative mold is taken and handed over to the laboratory for the fabrication of a metal stake. 4. Crown making: According to the patient’s tooth shape and trend, a crown is made on the core to restore the shape and function of the tooth. Root canal staking is recommended to choose a regular hospital for the postoperative period, follow the doctor’s instructions to take medication on time, and regular review to avoid complications.