How do i married this guy? where do I have to apply the visa, here in Singapore or in Italy?
Answer on I am a Singaporean and I want to get married with a Morracan guy who is working in Italy.?
If you want to enter Italy, you have to ask to the nearest Italian consulate in the Country where you're living in. So, if you live in Singapore, you have to ask to the Italian embassy in Singapore.
If you mean where do you have to ask for a wedding license, then in the Country where you're going to marry. So, if you marry in Italy, ask for the license in Italy.
Look here http://www.esteri.it/visti/index_eng.asp
for informations about how to get a visa for Italy.
Anyway, if you live in Singapore and you are a citizen of Singapore, you need a visa only if you want to stay in Italy for more than 90 days.
For less (say, for tourism), you just need your passport.