After all, before the Han Dynasty, the sphere of influence of the Central Plains Dynasty did not reach there.

If there are Han Chinese, it should be taken by businessmen or when they are fighting against Xiongnu.

The Western Regions in Han Dynasty were all small city-states.

After Zhang Qian's mission to the Western Regions, the forces of the Central Plains Dynasty began to infiltrate into Xinjiang, and Emperor Wu of the Han Dynasty set up the Western Regions Capital Protection House in Xinjiang.

There are local civil servants and troops, as well as some accompanying civilians and businessmen.

So the Han people in Xinjiang at that time were mainly officials, soldiers, civilian businessmen who moved with them and their families.