The internal struggles of the ruling group in the late Eastern Han Dynasty.During the reign of Emperor Huan, the eunuchs were in power and the politics were dark.In order to save the rule of the Eastern Han Dynasty, the officials who were oppressed by the eunuchs united with the imperial students to criticize the eunuch group, criticize the characters, judge the state affairs, and put huge political pressure on the eunuchs from the public opinion. People at the time called it "Qingyi%".The eunuchs then falsely accused Li Ying, Chen Fan, the leaders of the Qing Yi faction, and other disciples of being friends and slandering the court.In the eighth year of Yanxi (166), Emperor Huan issued an edict to arrest more than 200 people including Li Ying, and called them "Party members".