Is it visa-free for the mainland to travel to Peiji Island and then travel from Peiji Island to Australia?

Going to Fiji is visa-free, so I won't say much.

No matter where you go to Australia, you need a visa to enter China. Generally speaking, if you have a normal job and want to travel and visit relatives and friends, you can apply for an Australian individual visa. Besides passport, ID card, copy of marriage certificate, work certificate and other basic information. You need to provide some financial proof to prove your financial strength. The richer the financial proof, the less likely you are to stay and the higher the signing rate. Basically, you need a deposit certificate of 50,000 yuan within 3 months, with no upper limit. Real estate, automobile production, passbook and credit card consumption records are also provided as much as possible.

The cost is about 1200. It's more convenient to entrust a travel agency. The information will tell you, and it will usually be checked and confirmed in advance.