A NSW woman, who allegedly offered a child to strangers to be sexually abused, has been charged with sending and producing child abuse material.

The 35-year-old was arrested at her Armidale property, in the state's Northern Tablelands on Thursday.

The woman was arrested by the AFP after she allegedly used a carriage service to transmit and produce child abuse material, while offering the child to strangers for sexual abuse. Credit:Alex Ellinghausen

It followed an investigation by Australian Federal Police officers into the woman's recent online activities which involved the alleged abuse of a child known to her.

AFP officers launched an investigation into the woman after a report from a member of the public that a woman was using an international encrypted messaging service to share child abuse material of a child known to her.