Officers from Springwood went to a tavern on Wembley Road at 11.30pm last night after the woman refused to leave.
The female was arrested and taken to Logan Central Police Station, where she allegedly provided a positive reading of 0.226 percent (4X the legal limit).
Officers took the horse to the police station too.
She was charged with being in charge of a horse while under the influence of liquor.
She will appear in Beenleigh Magistrates Court on June 26.
Queensland Police, said: “Police want to remind the public that drink driving does not just mean a vehicle, it can include a horse.”