The Emin Valley (Chinese: 额敏谷地; pinyin: Émǐn gǔdì) is located on the China–Kazakhstan border, in Central Asia.

The Emin Valley has a steppe ecosystem of mostly grasslands; with two saline lakes, Alakol and Sasykkol; and mountains with temperate climates.

The Emin Valley Steppe is a Palearctic ecoregion in the Temperate grasslands, savannas, and shrublands Biome.

In the southeast, another series of mountain ranges separate it from the Dzungarian Basin (Gurbantünggüt Desert).

The Emin Valley's main watercourse is the Emin (Emil) River, which flows in the general western direction, receiving numerous streams flowing from the Tarbagatai Mountains and carrying their water to Lake Alakol.