The Australian population has an excellent health record, with life expectancy set at over 83 years of age, equal 2nd highest in the world.
Before moving to Australia you may need to undergo a health check. This is one of the ways that Australia tries to maintain health standards nationwide. If you obtain a permanent visa to stay in Australia you will likely be eligible to enrol in Medicare, which provides universal access to free public hospital care and subsidised treatment by most medical practitioners.
Most temporary visa holders, particularly students, are not eligible to enrol in Medicare and will be required to take out private health insurance as a requirement to obtaining a student visa before travelling to Australia. You must ensure that your health insurance will be valid for the duration of your time in Australia. Cover for 12 months costs around AU$370. Study Gurus will be able to help you organize the required health insurance as part of your visa application.