You need to file required docs at labour dept such as attested marriage contract from your country,both your school diploma and should be attested also from qatar ministry of interior,water/electricity bill and house contract (labour dept may required this documents )6 months bank statement,your salary at least QR7000 and NOC ("no objection certificate ")from your company stating that there is no objection to sponsor your wife and likewise your salary breakdown and offcourse photo copy of your passport and visa as well as your wife..
You need to file required docs at labour dept such as attested marriage contract from your country,both your school diploma and should be attested also from qatar ministry of interior,water/electricity bill and house contract (labour dept may required this documents )6 months bank statement,your salary at least QR7000 and NOC ("no objection certificate ")from your company stating that there is no objection to sponsor your wife and likewise your salary breakdown and offcourse photo copy of your passport and visa as well as your wife..