The side effect of automation on the economy has been discussed frequently, but little is known regarding its political consequences. This paper examines the causal effect that automation induces political costs for the local government. By combining the national individual-level panel data of political trust with the prefecture-level robot exposure rate in China biennially during the period 2012– 2018, we find that the development of automation would incur lower political trust in the Chinese local government. Furthermore, the impact may result from the risk of unemployment, intensified pessimism about local government, higher downside risk, and declining group participation, providing a few channels for the automation process to affect citizens’political trust. This paper provides empirical evidence for the impact of automation and the source of political legitimacy, contributing to the literature about automation by emphasizing the crucial role of government in coping with the technological progress and making good use of endogenous creative destruction.