Dezhou's biggest historical attraction is the tomb of Sultan Paduka Pahala of Sulu (Philippines), who died in Dezhou on his return journey from a visit to the Yongle Emperor in 1417. The tomb is well preserved and has been declared a national heritage site. Descendants of the sultan's Muslim followers still live in Dezhou today, and are classified as the Hui minority.
One of Dezhou's county Lingxian used to be a big county in China in history, when it was called Pingyuan County. Now part of the ancient city wall of Tang Dynasty still exists in the south of the region. Before the Three Kingdoms formed, one of the three emperors Liu Bei used to be the chief of the county, together with his fellows Guan Yu and Zhang Fei. In addition, it is the hometown of Dongfang Shuo (东方朔), the most well-known adviser during the reign of Emperor Wu of Han ; In Tang Dynasty, a major figure of Chinese calligraphy, Yan Zhenqing, once took office as the administrator of the county. Today, a memorial hall for the two historic figures is built in the People's Park of Lingxian, where a lot of materials of Dongfang Shuo and stone inscriptions of Yan Zhenqing are preserved.
For tourist attractions, there is also a famous temple in Qingyun County. It's called Haidao Jinshan Temple, which is one of the biggest centers of Buddhism in Northern China. The most attractive scene is the underground aisle where the portrait of the hell is presented using high technology.