With the continuous progress of science and technology and the continuous expansion of application fields, the application prospect of solenoid valve coil is more and more broad. In the aerospace field, solenoid valve coils are used to control critical systems such as fuel supply and hydraulic systems of aircraft to ensure flight safety. In military equipment, solenoid valve coils are used to control weapon systems, vehicle hydraulic systems, etc., to improve the combat effectiveness of equipment. In addition, in the fields of energy, chemical industry and environmental protection, solenoid valve coils also play an important role in controlling the flow of oil and gas pipelines and regulating liquid circulation. These applications not only reflect the diversity and flexibility of solenoid coil, but also demonstrate its important position in modern industrial and social development.