Senior Labor MP Tanya Plibersek says Prime Minister Scott Morrison is helping people smugglers by saying Australia's border protection regime has changed.

Ms Plibersek said Mr Morrison had been dishonest about legislation passed in parliament last week, despite the government's opposition, which allows two doctors to recommend asylum seekers currently on Manus Island or Nauru to be transferred on medical grounds.

She told Nine Network on Monday Mr Morrison is blatantly assisting people smugglers as he says our borders have weakened, which she notes is untrue.