Huai'an Department Introduction: Huai'an's water transport culture has witnessed the thousand-year history of Huai'an and demonstrated the political status, geographical location and economic prosperity of Huai'an, the "Cadu Capital". The prosperity of water transport promotes the prosperity of Huai'an's economy and culture. Since ancient times, Huai'an has been a canal hub. The canal's course north of Huai'an has changed several times. After the capital was moved to Beijing in the Ming Dynasty, the huge demand for materials in the north promoted the unprecedented prosperity of water transportation. By the Ming and Qing Dynasties, water transportation and salt transportation had achieved unprecedented development. Huai'an city controlled the opportunities of water transportation, salt transportation, river engineering, Guanguan and postal stations, and the development of Huai'an city entered its heyday.