I am Ganesh from Nepal and working in Galaxy Macau and I wish to bring my family to visit in macau.

Ganesh, you can make the application for your family from Macau immigration department. It may take 3 weeks to get the result after you submit the application. They need to provide those documents for tourist visa: copy of passport, the application form, passport-style photo, transportation and accommodation arrangement, financial support proof, and an invitation letter from you.