With the rapid development of low-temperature physics and quantum device technologies,the fabrication of high-quality iron-based superconducting thin films has become a critical research focus in condensed matter and materials physics.To address the issue of elemental segregation often encountered in conventional physical deposition processes，this study designs an instructional experiment that synthesizes FeTe0.5Se0.5superconducting thin films by combining pulsed laser deposition (PLD)with an ion-exchange technology.The course introduces the fundamental principles of PLD and ion exchange,and guides students through thin film deposition,ion exchange processing,and the subsequent characterization of microstructure and superconducting properties,thereby enhancing their practical skills and research competence.experimental results demonstrate that the films fabricated by this approach exhibit excellent elemental homogeneity,high crystallinity,and superior superconducting properties.This teaching design provides students majoring in related fields with a solid foundation for understanding the fabrication and property modulation of two-dimensional superconducting materials,while offering new insights into future research and applications of high-temperature superconductors.