The family of a young Sydney woman who returned home after being accused of drug smuggling in China have thanked well wishers for their support.

Kalynda Davis, who was reported missing by her family in early November, was expected to face a Chinese court this week charged with trying to smuggle 75kg of methamphetamine (ice) to Australia with Peter Gardner, a New Zealand-born builder living in Australia.

In a statement released yesterday by DFAT Ms Davis's family confirmed that she is back home and said she is "innocent" of the allegations levelled against her.

The family also said thank you to supporters who offered well wishes during the month-long ordeal.

Mr Gardner is believed to still be overseas and possibly facing the death penalty.

- AAP