Ferroelectric testing is a key means of studying the properties of ferroelectric materials and has wide applications in many fields such as power, electronics, communication, and sensors. Ferroelectric materials can undergo polarization and maintain a polarized state under the action of an external electric field. Therefore, studying their polarization behavior, electromagnetic properties, and thermal properties is of great significance for material development and practical applications. Through ferroelectric testing, not only can the polarization mechanism of materials be deeply revealed, but their performance under various environmental conditions can also be systematically evaluated, providing key basis for material modification optimization and device structure design.