This article initially presents the working principle of electromagnetic switching devices and the significance of the contact system, distinguishing contact vibration into contact closure bounce and contact release rebound. It emphasizes that these phenomena are crucial factors influencing the lifespan and reliability of electrical devices. Subsequently, through the analysis of domestic and international literature, the paper discusses the academic community's progress in understanding and improving these vibration phenomena. The study shows that closure bounce and release rebound are affected by factors such as structural parameters and the contact engagement method. Notably, scholars have proposed innovative solutions, such as employing the principle of eccentric impact with inclined stationary contacts to suppress closure bounce, and adding limit stop plates between moving and stationary contact leaves to significantly mitigate release rebound, thereby markedly improving the appearance of contact vibration. Finally, the paper summarizes the current state of research on contact vibration in electromagnetic switches, pointing out the deficiencies in existing studies.