non-residents are entitled to enter and depart from the Macao Special Administrative Region if you hold a Hong Kong Permanent Identity Card or Re-entry Permit. so, you need to apply for a visa to Macao.

you should process a valid onward or return ticket unless you can prove that you reside in the Hong Kong Special Administrative Region.
Also, you are required to prove that they possess the vital resources of a minimum of MOP5000 for their expected period of stay in Macao;