You have to work in Canada first, as it would be your first job in Canada, you will have to have worked 840 hours.
If this is your first job or if you are re-entering the work force after an absence of two years, you will need to have accumulated at least 910 hours of insurable employment during the qualifying period to qualify for EI regular benefits.
However, effective December 7, 2008, until December 4, 2010, if you live in one of the designated economic regions, you may be able to qualify for EI regular benefits by accumulating only 840 hours of insurable employment instead of 910.
The same applies for your wife, she has to work to be eligible for EI.
Thank u very much PMM for your informative and helpful reply.