This study investigates construction bidding activities in Vietnam in the context of digital transformation, focusing on advantages, challenges, underlying causes, and policy implications. The research applies a qualitative approach, combining doctrinal legal analysis with document review of policy reports and empirical studies related to procurement practices. Key legal instruments, including the Law on Bidding and its recent amendments, are examined alongside practical evidence from official reports and sector-specific analyses. The findings indicate that digital transformation has improved transparency, enhanced access to bidding information, and reduced administrative costs through the implementation of the national e-procurement system. These changes have contributed to strengthening competition and promoting more efficient use of public resources. However, the study also identifies persistent challenges, including inconsistencies in legal implementation, technological disparities, and limitations in institutional capacity. Governance risks, such as non-compliance and procedural irregularities, continue to exist despite the expansion of digital platforms. The analysis shows that these issues arise from the interaction of legal, institutional, and technological factors. The study concludes that improving construction bidding requires a coordinated approach that integrates regulatory coherence, capacity building, and digital infrastructure, thereby contributing to more effective and accountable procurement systems in transitional economies.