Authors and conference attendees from countries requiring visas to enter Macau may request a visa letter by sending email to t.sq.mgt@gmail.com with subject “VISA Letter Request: IEEE-NANO2019 <paper no>“. Please allow sufficient time for obtaining a visa.

All visitors must hold a passport or a valid travel document for travel to Macao. 

All visitors are required to have a visa except nationals of countries which are exempted from a visa or entry permit. For more information on “Visa” and “Entry Permit” Exemption, please visit the website of the Macao Immigration Services of Public Security Police Force. 

A Macao visa can be obtained through the Embassies/Consulates of the PRC and should be used within its validity. Visitors may also apply for an entry permit or visa upon arrival at the immigration checkpoint. However, visitors from certain countries are required to obtain a visa in advance before their trip to Macao. For more information, please visit the website: http://www.fsm.gov.mo/psp/eng/AfMV.html 

There are three types of entry permit (i.e. Visa-upon-arrival) :
Individual
Family Passport
Group

The above information is for reference only. For further information on entry formalities, please contact the Macao Immigration Services of Public Security Police Force at : http://www.fsm.gov.mo.

Sources: http://en.macaotourism.gov.mo/plan/entry_requirements_detail.php