E-governments have become a popular topic in recent decades and have attracted widespread attention on a global scale. Previous research mainly investigating the direct impact of IT infrastructure on e-government performance lacks in the context of other organizational resources and contingency factors. This study uses a panel data from Chinese prefectural cities and further exams the effect of interaction between IT infrastructure and other organizational resources (financial and human resources) on e-government performance through the moderating role of environmental uncertainty (environmental turbulence and complexity) based on resource-based and contingency views. Interaction between IT infrastructure and financial resources has a positive effect on e-government, while the interaction between IT infrastructure and human resources has a negative effect on e-government performance. Additionally, the effect of the interaction between IT infrastructure and organizational resources (financial and human resources) on e-government performance increases with a decrease in environmental turbulence and with an increase in environmental complexity. This article helps practitioners recognize the importance of IT infrastructure in developing e-government performance and provide actionable insights on financial and human resource allocation, while considering IT infrastructure. The paper offers evidences for government managers seeking resource combination to address turbulent and complex environments.