Prefabricated buildings not only enhance construction efficiency and shorten project timelines but also effectively reduce resource waste at construction sites. Despite their significant advantages in project implementation, prefabricated construction faces multiple quality challenges due to rapid market expansion, professional workforce shortages, non-standardized operations, and insufficient management expertise. This study focuses on quality management in prefabricated building projects, using Project A as a case study to analyze quality issues across component production, transportation, and installation processes. The research proposes preventive measures including standardized concrete pouring and vibration techniques, enhanced component transportation protocols, improved on-site assembly precision, and strengthened connection quality control. It further develops comprehensive quality assurance strategies for prefabricated construction, aiming to provide theoretical support for improving construction quality and promoting the healthy development of the prefabricated building industry.