The Tang campaign against Kucha, known as Qiuci in Chinese sources, is a military campaign led by the Tang Dynasty general Ashina She'er against the Tarim Basin oasis state of Kucha in Xinjiang.

The campaign begins in 648 and ends on January 19, 649, after the surrender of the Kuchan forces following a forty-day siege in Aksu.

Kuchean soldiers try to recapture the kingdom with the assistance of the Western Turkic Khaganate, but are defeated by the Tang army.The Tang court establishes a military garrison in Kucha, and places the oasis state under the governance of the Anxi Protectorate.

Hostilities between the Western Turkic Khaganate and the Tang Dynasty continue after the fall of Kucha.

The Tang will later annex the khaganate after a military expedition in 657.