Can I apply for a visitor visa while applying for Australian spouse immigration?

Of course, it is very reasonable to apply for a visit visa after submitting your spouse's immigration, because your immigration tendency has been ruled out at this time. It should be noted that you must stay in China until your spouse's immigrant visa comes down.

Just because a person can only have one valid visa does not mean that only one visa application can be submitted at the same time. When he gets an immigrant visa, your visitor visa will be invalid if it is still valid, and you can travel to and from Australia freely.