'Ten thousand years') is a county in the northeast of Jiangxi province, China.

Wannian County comprises 6 towns and 9 townships.

The county seat and largest population center is Chényíng Town (陈营镇).

In addition to farming, pearl and concrete production are economically important.

[1] Wannian is the location of the Xianren Cave (Fairy Cave), where historically important finds have been made of ancient pottery shards and rice grains.