 While working at the Compilation and Translation Bureau, Yi was said to have played a major role in developing the Confidence doctrine, which later became a major slogan following the 18th Party Congress.On January 17, 2013, Yi Junqing was dismissed from his position for his lifestyle by the Central Commission for Discipline Inspection of the Communist Party of China.Yi Junqing had a mistress, Chang Yan (), who was married to a post-doctoral researcher in Compilation and Translation Bureau of the Central Committee.