"Detective Di Renjie" is set in the Wu and Zhou Dynasties, and through four parts and eight cases, it shows the battle of wisdom in the political whirlpool of the prosperous Tang Dynasty. From the bloody case of the Turkic mission to the curse of the bloody eagle, each case hides the dual game between palace intrigue and Jianghu forces. Di Renjie and Li Yuanfang, a pair of "wise and courageous detectives", not only demonstrated the official way of "the saint's impermanent heart, taking the people's heart as the heart" when solving strange cases such as the Youzhou rebellion and the Huzhou treasure map, but also presented the narrative charm of a perfect fusion of modern reasoning and traditional public cases.