Aihui New City vestiges, National heritage site in Aihun Town, China.

Aihui New City vestiges are the remains of the Heilongjiang City built in 1684, the 23rd year of Kangxi's reign, on the site of the Ming-era Huliping fortress. The settlement stands at Aihui in today's Heihe, Heilongjiang Province, on the border with Russia, and served as the seat of the Heilongjiang general. Its grounds held the Kuixing Tower, an octagonal tower and the tomb of General Fu.

In 1683–1684 the Qing government built the first Aihui city at the confluence of the Jingqili and Amur rivers, on the site of the Ming Huliping fortress. In 1685 the city was moved to its present location and became the seat of the Heilongjiang General. The site was listed in 2001 as a Major Historical and Cultural Site Protected at the National Level (5-480).

The site's Daur name, Mood hotn, means "wooden city", and its Manchu name, aihūn hoton, gave the place its Chinese name. The Qing garrison town was also called Heilongjiang City after the Manchu name for the Amur, Sahaliyan Ula, "black dragon river". Within the walls stood the Kuixing Tower, an octagonal tower and the tomb of General Fu.

The site is open for public visits and features informational displays explaining the history and archaeology found here. Wear comfortable shoes as the terrain is uneven and the visit takes place entirely outdoors in variable weather conditions.

The Daur name for the site, Mood hotn, means "wooden city", while the Manchu name aihūn hoton gave the town its Chinese form Aihui. The Qing built the new city in 1685 on the site of Hulipingzai, a Ming-era fort, and made it the seat of the Heilongjiang general.