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