No matter you are working or not, you need sponsor your parents. If your spouse are working while you are not, it's better to have both to sponsor. Your spouse cannot sponsor your parents directly without you.
Detail messages in: www.canada.org.cn. Note: there are different requirements between the web introduction and the application kit. You'd better have both prepared.
For my experience, you'd better ask your parents support themselves. Then they need show the letter from their employer, their income, bank statement and house and so on. And you can provide your bank statement.