In this study, we examined the power operation and policymaking mechanisms of local governments in China and analysed the sources of risk in macroeconomic policies. Based on the reality of local governance in China, this article defines political uncertainty as normal or abnormal changes in the Standing Members of the Communist Party of China (CPC) Provincial-level Committee. We analysed the impact of turnovers of these local core officials upon the investment and financing of local private-sector enterprises. We found that when changes in provincial inner core officials happened normally, the long-term impact on the investment and financing of local private-sector enterprises was not so obvious. However, when senior officials were investigated for corruption, the investment and financing of enterprises dropped significantly. For enterprises with personal political capital only, the impact of local core official turnover upon firm financing was even more pronounced. For private-sector enterprises with partial state ownership, however, this negative impact was significantly weakened in the long term.