Abstract: When examining the chivalrous and detective novels of Qing Dynasty, we find that the emperors’ support for the justice is a political foundation and driving force for officials and knight-errant to execute laws and punish evils. The novels Legend of Shigong Case, Legend of Three Heroes and Five Chivalrous Persons and Legend of Penggong Case all are based on the folk tales. And the emperors’ images were built after Renzong of Song Dynasty and Kangxi of Qing Dynasty. And they finally came into being after the polishing. The images of enlightened emperors have reflected the views on emperors under the influence of Taoism. And they have implied the expectations of both folklore makers and listeners or readers for enlightened emperors.