How long does it take to get the queue number of Australian visa 143 to get a green card?

You mean 143, right? The letter will tell you when the court session will be held, and inform you that you can do some preparatory work such as notarization, 80 forms and physical examination in advance as appropriate;

According to the current progress, it will take 143 parents to emigrate, and it will take 18-24 months to be approved.