[3] Yin returned to China in 1993 and started his career as a cadre of the Department of Education, Science, Culture and Health at the Research Office of the State Council.

[7] On 29 January 2016, Yin assumed the post of Governor of Sichuan after his predecessor Wei Hong resigned in the wake of an internal party investigation into his conduct.

After an outbreak in the province in September 2021, Yin told a meeting of the Fujian Provincial Party Committee that the situation is "serious and complex, and the task of prevention and control is urgent and onerous".

[13] In the same month, Yin held a municipal work planning meeting, where he called on cadres to "thoroughly investigate and resolve disputes, and make every effort to maintain social stability".

He also called on officials to take care of the people "with heart and affection", resolve urgent problems faced by the public, and also warned against industrial safety risks and natural disasters.