This research will use quantitative methods to determine the key factors that affect the sustainability of the supply chain, and based on the results, put forward measures and recommendations to promote the sustainability of the supply chain. This approach is considered appropriate because it enables researchers to objectively test and confirm influencing factors and explain how they affect the management of a sustainable supply chain.

Research philosophy
This research follows the principles of positivism. Positivism is a philosophical theory, a philosophical school based on empiricism. Positivists believe that their theory is the “philosophy of science” that unifies all sciences (Ryan, 2018). They advocate using empirical methods instead of abstract thinking. They regard experience as the basis of knowledge, limit knowledge to the scope of experience, and insist on describing experience. People believe that only knowledge verified by experience is reliable knowledge. They believe that human knowledge is composed of logic, mathematical thinking and prudent experience observation. This theory is based on experience and requires that any science must start with perceivable facts and describe these perceivable facts and laws (Crossan, 2003). Positivism methodology is of great significance for guiding people to conduct academic research. Interpretationism is another common philosophical theory and a typical representative of anti-empiricalism. The philosophical view of interpretation methodology holds that the world does not exist independently of people, but is constructed through human interpretation