I am the principal applicant in this case can my wife sponsor my sister

[masud2002]

I am the principal applicant in this case can my wife sponsor my sister

 

[zardoz]

I am the principal applicant in this case can my wife sponsor my sister

Probably not. Please check here -> http://www.cic.gc.ca/english/immigrate/eligibility.asp

Update :
I have just read the rest of your posts on this subject.
The answer to all of the "can I sponsor" / "can my wife sponsor" questions is "NO". You can sponsor your parents only.