White Lotus Uprising outbreaking in the first year of the Jiaqing（1796）ended the“Kangxi and Qianlong Golden Age”. After Emperor Jiaqing got the throne，his father，Emperor Qianlong still hold the power，while courtier Heshen controled the political affairs，and some areas were in turmoil。Faced with the declining of the Qing Dynasty and ChuanChu's White Lotus Uprising, Jiaqing needed to implement reforms to save intensified situation of the Qing Dynasty。It can be said that Jiaqing's reforms in officialdom、military and strategy after he got the power not only played a decisive role for the suppression of White Lotus Uprising，but also had a tremendous influence on the political situation in the middle and latter periods of Qing Dynasty。