Arriving In Australia
At The Airport
An Incoming Passenger Card will be issued to you onboard your flight to Australia. Be sure the information you provide is honest and complete, particularly regarding items to be declared for Customs purposes. Note that in addition to restricted items, you must declare any cash you are carrying that is equivalent to AU$10,000 or more.
Australia regards quarantine infringement very seriously and employs a variety of measures, including sniffer dogs, to catch offenders. You could receive an on-the-spot fine of $220 and, if prosecuted, more than $60,000 in fines and up to ten years jail!
However, if you declare the items, you will not face a penalty. At worst, restricted goods will be confiscated and destroyed. Otherwise they may be quarantined and returned to you at a later date, or found to be non-restricted and approved for you to keep.
Upon disembarking your flight, signs will guide you to an immigration checkpoint where your passport, visa, incoming passenger card and enrolment documents will be inspected. From here you will proceed to the baggage claim area, where you will collect your luggage and be processed by Customs. Proceed via the Red Customs channel if you have goods to declare or via the Green channel if you have none.
When you exit via the Red channel, your suitcase and personal baggage will be x-rayed and may be opened up for inspection. Your declared items will either be approved or confiscated, and you will then be free to exit the terminal.
Signage will guide you to the domestic airport for a connecting flight, or to public transport and taxis.
Conditions of your Visa
The conditions under which your student visa is granted appear in your visa letter of approval, or on the visa label. Breach of these conditions may result in visa cancellation, deportation and a three-year ban from re-entering Australia.
Your contact for all visa-related matters is the Department of Immigration and Citizenship (DIAC).

Australia
Study Australia - Guide for international students