How long can mainland citizens and Macao citizens get married and move into Macao household registration?

That's not a registered permanent residence, it's an immigration. In the fourth year of marriage, you will get a single-layer certificate (excluding Macao residents, not using the right of abode in Macao, not enjoying any benefits, and not getting a mainland identity card), and in the third year (that is, the seventh year of marriage), you will get a non-permanent identity card (you will get the right of abode in Macao, enjoy some benefits in Macao, and get a Macao permanent identity card that the Macao government has the right to cancel when something happens).