Doulu Qinwang had at one point served as the commandant at Yue Prefecture (, roughly modern
Shaoxing,
Zhejiang), and as of 693, during the reign of Emperor Gaozong's wife
Wu Zetian, was serving as the minister of vassal affairs (,
Sibin Qing), when Wu Zetian promoted him to the post of
Neishi () – the head of the legislative bureau of government (,
Fengge) and a post considered one for a
chancellor. In 694, there was an incident where Doulu, without informing the other officials what the contents of his petition was, ordered the other officials to sign a petition—which, without their knowledge, contained an offer for all officials to give up two months of salary in order to aid in the war effort against
Eastern Tujue. When Doulu's subordinate Wang Qiuli () objected, on the account that the low level officials would not be able to support themselves if they gave up two months of salary, Doulu refused to listen, and Wang directly reported it in person to Wu Zetian. Eventually, the matter of having the officials giving up two months of salary was not further mentioned. In late 694, Wu Zetian, displeased with the powerful chancellor
Li Zhaode, exiled Li, and fellow chancellor
Zhou Yunyuan and the assistant chief judge of the supreme court, Huangfu Wenbei (), then submitted articles of impeachment against Doulu and several fellow chancellors –
Wei Juyuan,
Du Jingjian,
Su Weidao, and
Lu Yuanfang – for not being able to curb Li Zhaode's power. The five chancellors so accused were all demoted to be prefectural prefect—in Doulu's case, to be the prefect of Zhao Prefecture (, roughly modern
Shijiazhuang,
Hebei). In 695, Doulu was recalled to serve as the minister of ceremony (,
Sili Qing), and then was made the minister of justice (,
Qiuguan Shilang) and created the Duke of Rui, a title that his grandfather Doulu Kuan had carried. He was subsequently commissioned to tour the prefectures north of the
Yellow River. In 697, he was serving as the head of the household of Wu Zetian's son and
crown prince Li Dan (formerly emperor), when she made him
Wenchang You Xiang (), one of the heads of the executive bureau (,
Wenchang Tai), and gave him the designation of
Tong Fengge Luantai Sanpin (), making him a chancellor
de facto. In 698, however, he was removed from those posts and made an advisor to Li Dan. Later that year, after Li Dan yielded the position of crown prince to his brother
Li Xian, also formerly an emperor, Doulu continued to serve as an advisor to Li Xian. == During Emperor Zhongzong's second reign ==