Identification, funds, etc. It's similar to Hongkong, but it's a little longer and simpler than Chinese mainland. Looking at the specific situation here, I should basically be able to answer you:

http://www.gov.mo/egi/Portal/rkw/public/view/area.jsp? id = 23

In addition, the government also provides one-stop service to help you establish:

http://www.ipim.gov.mo/

But the problem is that at present, the Macao government is very tight on residence and business visas. Unless your investment is relatively large, it is difficult to approve it, so you can only be an offshore company. Otherwise, you already have a residence in Macao.