Emperor Wu of the Han Dynasty was very strict with King Liu and their families. According to Jiang Chong's report, Prince Zhao was arrested and imprisoned, during which Prince Zhao died in prison. Emperor Wu of the Han Dynasty praised Jiang Chong's practice. Emperor Wu of the Han Dynasty thought Jiang Chong was an honest man who told the truth, so he was appointed as the messenger of Xiongnu. Before going to the mission, Emperor Wu of the Han Dynasty asked him what his plans were. He said that everything was improvised. Jiang Chong was active among the Huns for nearly a year, and he was reused after he came back. He served as an ambassador to embroidered clothes. The main duty of this official position is to be responsible for discipline inspection and supervision. Officials who hold this position, wearing embroidered clothes, have the right to punish illegal court officials on behalf of the emperor.
Jiang Chong was close to his own intelligence and was highly valued by Emperor Wu of the Han Dynasty. When Jiang Chong was in office, he inspected the prince and his children severely and illegally, and dared to confront difficulties, so he won the appreciation of Emperor Wu of Han Dynasty. Jiang Chong once confiscated all the cars that China Emperor Wu's aunt Guan Tao princess royal ran in Chidao. He also punished the prince's messenger who galloped on the imperial road. The prince personally interceded, and Jiang Chong also lost face.
In this way, by becoming the spy chief of Emperor Wu of the Han Dynasty, Jiang Chong's supervisory duties directly extended to the emperor and relatives of the country, and he had the right to participate in any act that violated etiquette and extravagance.