The professional education stage is the most important and most effective period for the cultivation of engineering ethics awareness. To enhance the learning effectiveness of engineering ethics education, the research focuses on engineering ethics education promotion path, constructs a path promotion analysis model, and uses PLS to explore the influence mechanism of learning effectiveness. It puts forward a reasonable structure of engineering ethics education in China by examining the learning path of engineering ethics education, so as to promote the comprehensive growth of engineering talents and realize the goal of efficient training of engineering talents.