Abstract:Basement leakage is a key problem that has long plagued construction projects, directly affecting the service life and structural durability of buildings, and closely related to people's lives and property safety. Based on this, the article elaborates on the importance of quality control in the supervision of basement waterproofing construction in building engineering, analyzes the main factors affecting the quality of basement waterproofing construction, and proposes corresponding quality control measures for reference by relevant personnel.