The purpose of the present invention is to provide a method for producing a puncture needle that causes less pain upon use, such as at the time of piercing. This is solved by a puncture needle producing method comprising a step of processing a pipe-shaped metal base material, which has on one end thereof a ground surface made by machining, with a plasma generated in an atmosphere filled with a gas mixture including a principal gas and a reactive gas as main components.刺通時等の使用時の痛みが少ない穿刺針の製造方法を提供する。一端に機械加工して得た研削面を備えるパイプ状の金属製基材を、主要ガスおよび反応ガスを主成分とする混合ガスで満たされた雰囲気内で発生させたプラズマによって処理する工程を備える、穿刺針の製造方法によって解決する。
