  As large scale construction projects become increasingly complex, the use and
integration of advanced technologies are being emphasized more and more.
However, the construction industry often lags behind most industries in the
application of digital technologies. In recent years, a decentralized,
peer-topeer blockchain technology has attracted widespread attention from
academia and industry. This paper provides a solution that combines blockchain
technology with construction project fund management. The system involves
participants such as the owner's unit, construction companies, government
departments, banks, etc., adopting the technical architecture of the Xiong'an
Blockchain Underlying System. The core business and key logic processing are
all implemented through smart contracts, ensuring the transparency and
traceability of the fund payment process. The goal of ensuring investment
quality, standardizing investment behavior, and strengthening cost control is
achieved through blockchain technology. The application of this system in the
management of Xiong'an construction projects has verified that blockchain
technology plays a significant positive role in strengthening fund management,
enhancing fund supervision, and ensuring fund safety in the construction
process of engineering projects. It helps to eliminate the common problems of
multi-party trust and transparent supervision in the industry and can further
improve the investment benefits of government investment projects and improve
the management system and operation mechanism of investment projects.
