The invention relates to the technical field of hardware, and specifically relates to a high-protection-property durable paint-dried part of a stud and a machining process thereof. The high-protection-property durable paint-dried part is simple and reasonable in structure, and comprises a first thread section and a second thread section, the first thread section is provided with an external thread, the second thread section is provided with an internal thread, the two thread sections form a male-female structure, the high-protection-property durable paint-dried part is novel and unique in structure, a conical fixed column and a cylindrical fixed column are arranged between the two sections of the stud, so that the structural strength of the fixed columns is increased and the functionality of the fixed columns is improved, and the wear resistance of the stud is improved and the service life of the stud is prolonged through spraying of a wear-resistant paint-dried layer; the wear resistance, water resistance and chemical corrosion resistance of a paint can be enhanced through matching use of silicon dioxide and graphene powder, and the paint is high in adhesion force, protection property and durability; and the machining process is simple, scientific and reasonable, and low in mechanic cost.