Based on the basic platform supporting the overall e-government framework, this paper builds an application system for the intelligent management of government departmental business and three major databases of basic, departmental and thematic categories. Secondly, under the collaborative information governance model of blockchain, the data are jointly managed by all the regional governments in the distributed network, plus the application of smart contracts makes each governance link respond intelligently. Finally, an empirical study is conducted on employees of three types of government departments to analyze the regularity of the influencing factors of smart shared services in digital government. The results show that the regression coefficient of the strategic policy of government agencies on the degree of realization of information sharing is 0.829. The regression coefficient of the platform organization of government agencies on the degree of realization is 0.705. To promote the construction of digital government in China, this paper utilizes blockchain technology in digital government governance.