Based on the construction specification of blasting in water conservancy projects, combined with the distributed database technology, wireless sensor network technologies and B/S architecture, we established the excavation blasting digital system for Baihetan hydropower station. This blasting sharing information platform has the fundamental characteristics of distributed database storage and wireless sensor network transmission. The main functions of the system include blasting basic data management, overall excavation program management, blasting processes management, blasting equipment management, monitoring and management of blasting, blasting quality inspection management, prewarning of blast monitoring, user rights management and system help files. The system provides digital support and technical support for in-site digital blasting, improving site management and control for blasting excavation.