The PhD in System Theory at Qingdao University (QDU) is a rigorous four-year program tailored for international students, conducted entirely in Chinese. This program provides an in-depth education focused on understanding complex systems and their dynamics, bridging the gap between theoretical principles and practical applications. Key areas of study include control theory, system dynamics, optimization methodologies, and nonlinear systems. The curriculum is designed to foster a robust conceptual understanding of system interactions, encouraging research that contributes to advancements in technology and engineering. Participants benefit from hands-on research opportunities under the guidance of experienced faculty members, who offer mentorship throughout the doctoral journey. The program not only emphasizes academic excellence but also prepares students for high-level careers in diverse sectors such as engineering, telecommunications, robotics, and finance. Additionally, living in the culturally rich city of Qingdao provides students with a unique opportunity to immerse themselves in Chinese culture while pursuing their academic aspirations. With extensive academic collaborations globally, graduates leave equipped to tackle complex problems and lead innovative projects within both academic and professional environments.