I am a nepali passport holder.. currently i am in uae.. i want to go and work in macau

The first thing is to find a company to hire you and then you can get the needed documents.
The next step is to prepare all the required materials containing copy of your passport, the completed application form with a passport-style photo attached, and copy of employment approval document (your employer will get it for you).
Finally, submit the application to the embassy of PRC to apply for the work entry permit.