Cao Rui
In 226, after Cao Rui, the second emperor of Wei, ascended the throne, he appointed Guanqiu Jian as a Gentleman of Writing () and supervisor of the Imperial Guards. As Guanqiu Jian was previously an assistant official serving under Cao Rui when the latter was still crown prince, Cao Rui treated him exceptionally well. Guanqiu Jian later rose to the position of Agricultural Officer of Luoyang (). During this time, he wrote to Cao Rui, advising the emperor to scale down on his extravagant palace building projects. Later, he was promoted to Inspector () of Jing Province.