A student visa for Australia allows international students to study full-time at an Australian educational institution. To obtain this visa, you'll typically need an offer of enrollment from an Australian educational institution and meet health and character requirements. The duration of the visa depends on the length of your course. It may also allow limited work rights to help support your studies. It's important to check the specific requirements and conditions associated with the visa, as they can vary depending on factors such as your country of origin and the type of course you plan to undertake.