In the early Eastern Han Dynasty, Emperor Cheng was excluded from the narrative in Holy system, which is a typical imperial luxury. In the Ode to Xidu, Ban Gu described Zhaoyangs prosperity, regarded both Emperor Cheng and Emperor Wu as the representatives of the luxury in Xidu, and analyzed the causes of the decline of the Western Han Dynasty from a historians perspective. Meanwhile, he also fondly recalled the foundation of ten generations, admired the last flourishing age of Xidu, which represented the general mentality of some scholars in the early Eastern Han dynasty. Apart from the luxury of Emperor Cheng and Emperor Wu, and the model role of Mas and Yangs odes, the Ban familys collective memory of Emperor Chengs time is one of the key factors of the focusing on Emperor Cheng in the Ode to Xidu.