Your spouse and you should fill it. Just reader the istructions in the guide.brightredscream said:I am my husband's sponsor, a Canadian citizen. We have no children or dependents.
What do we do with this form?
The guide (3999 - there is a link in one of the above posts I can't add a link yet :-[) has explanations exactly who should fill it and what should be in each section.
I found it very helpfull.