Id Kah Mosque comprises a gate tower, the Hall of Prayer, the Hall of Scripture, a courtyard and other attached structures. At the entrance to the mosque, the gate tower is built of yellow bricks that make the whole tower splendid, solemn and lofty. This tower can be considered the best amongst the whole group of buildings in terms of  design. As you pass through it you see a large courtyard in front of you with tall trees, beautiful flowers and a clean pond. The whole scene is delightful. Altogether there are 36 Halls of Scripture on both the south and north sides of Id Kah Mosque. The Hall of Prayer is on the east side of the mosque and includes Formal Halls and Attached Halls. Blankets or reed mats are laid on the ground for Moslems' praying.

The importance of Id Kah Mosque is not only because of its long life and exquisite construction, but also because it is a sacred place for all the Xinjiang Moslems. Every Friday afternoon (the most important day of the week in their religion), Moslems from nearby come here to worship. The Mosque can house 6,000 to 7,000 people at one time.