For someone on a Canadian work permit who wants their parents to visit them:
- Understand this isn't a 'sponsorship' in the immigration sense. A visitor visa is not a sponsored application — your parents apply for the visitor visa on their own merits as applicants, not as your dependents.
- Provide an invitation letter from yourself as the host, explaining the purpose and length of the visit and your relationship to the applicants.
- Support the application with your own financial documents — bank statements and pay stubs help show you can financially support their stay if needed.
- Make sure your parents' own application shows strong ties to home — property, employment, other dependents, or similar evidence that supports their intent to return, since this is what a visa officer actually assesses for a visitor visa.
There's no special 'work permit holder' pathway here — the core requirements are the same as any visitor visa application, just supported by an invitation and financial documents from the Canada-based family member.