To help managers enhance their understanding and attention to quality, this paper summarized the development and research status of quality management theory. Through summarizing the research achievements of scholars in the field of quality management, exploring the history of quality management theory's development, and understand its application in industrial, construction engineering, scientific research, business administration and education practice, analysed the application situation of process approach in quality management system. It is found that modern quality management theory has been highly recognized and widely used in all aspects of human society, especially in the field of engineering projects.