A New Zealand woman has appeared in a Bali court following allegations she was high, "babbling" and carrying drugs when she flew into the popular island from Australia in 2016.

Myra Williams said nothing as she was lead into Denpasar Court today for the first day of her trial in which she faces charges of drug trafficking and possession.

It is alleged the 27-year-old, who flew into Denpasar from Australia on August 31, began "babbling" when asked to queue for her travel documents and was later found to be carrying 0.43g of methamphetamine.