Kazakh Cyrillic: Дөрбілжін ауданы Emin County, the official romanized name, also transliterated from Mongolian as Dörbiljin County, is a county situated in the north of the Xinjiang Uyghur Autonomous Region and is under the administration of the Tacheng Prefecture, bordering Kazakhstan's districts of Tarbagatay and Zaysan.

Geographically, the county is located on the southern slopes of the Tarbagatai Mountains and in the Emin Valley.

The main watercourse is the Emin (Emil) River.

In 1918, Yang Zengxin, the governor of Xinjiang, petitioned to have a county set up in the Emin Valley.

Nevertheless, the official Kazakh and Uyghur name of the county is still "Dörbiljin".