Focusing on the research of applications in embedded operating systems, this bachelor's thesis delves into the critical issues and cutting-edge technologies in this field. Through a thorough analysis of the characteristics and architecture of embedded operating systems, the paper emphasizes the importance and widespread application of such systems in practical scenarios. The research encompasses the design principles of operating systems, collaborative optimization of hardware and software in embedded systems, and practical case studies. On the hardware front, the paper examines the seamless integration of embedded systems with various sensors and actuators to achieve efficient real-time data processing and control. Simultaneously, it delves into the application of embedded operating systems in areas such as the Internet of Things, smart homes, and medical devices, providing readers with profound insights and practical knowledge. Finally, by exploring the future trends in related fields, this paper offers valuable reference material for the research on the application of embedded operating systems.