Police went to the property on Byamee St in Dapto about 3.30pm yesterday “following reports a woman was in need of assistance”.
But when they arrived, a woman at the home allegedly punched one officer in the chest before turning and slapping another.
“The woman allegedly attempted to spit at police before locking herself in a caravan in the backyard of the property,” police said in a statement.
“Officers negotiated with the woman before she allegedly opened the door and again attacked police.”
NSW Ambulance paramedics assisted and the woman was taken to Wollongong Hospital for assessment.
A male police officer was also taken to hospital for treatment.
Police said drugs and drug paraphernalia were seized from the property and inquiries continue.