If you get married in Australia, can your parents go together? For example, long time or immigration. Besides, can't I go back to China?

Look at the state of your marriage partner. If it's not PR or citizen, you can't get immigrants. If so, after the application is approved, you will be transferred to TR (temporary resident). If TR is not divorced after two years, it will automatically become PR (permanent resident).

But it doesn't affect your return to China. You've always been from China. Unless you want to change your Australian citizenship after getting PR for two years, you need to apply for a visa every time you return to China.

Parents can travel to visit relatives for a short time, but if your parents want to organize family reunion and immigration, they have to queue up. Now it is estimated that it will take about 14 years, because the number of family reunions in Australia is limited every year. If you don't want to wait in line, you have to pay, as if 40 thousand Australian dollars is enough (the specific amount is really unclear recently, anyway, it should be only a little more)