Abstract:With the high-quality development of the highway industry and the popularization of prefabricated assembly technology, the development of highway bridges has rapidly increased; At the same time, due to the fact that the vast majority of pile foundations still use traditional construction techniques, the safety and quality management of concealed engineering construction is crucial. In order to further improve the quality of concealed engineering in highway projects, the Municipal Traffic Safety and Quality Supervision Station conducted a special inspection of highway engineering pile foundations in 2024. Through four rounds of inspection, a total of 431 prominent problems were summarized in 7 aspects. Through statistical analysis of prominent issues with pile foundations in Shanghai's highway engineering, combined with industry status analysis of the causes of the problems, and from the perspective of industry supervision and management, this study provides suggestions for the safety and quality supervision of highway engineering.