Engineering ethics education is an indispensable part of higher engineering education reform. The research on engineering ethics education gets more attention from researchers under the background of Emerging Engineering Education. Based on Natural Language Processing(NPL), with the support of metrological visualization tool, this paper selects 212 research literatures collected in CNKI. From literature keyword time distribution map, keyword frequency list, keyword cloud map, LDA topic clustering table, this paper analyzes the research status, theoretical basis, and hot topics in this domain based on the environment of machine learning. Problems that impede the development of engineering ethics education are pointed out, and some suggestions are proposed. This study provides an effective reference for promoting engineering ethics education.