How to renew your visa for studying in Canada?

The so-called small sign is actually proof when you leave Canada and want to enter Canada again. If you are currently in Canada and don't plan to leave Canada in the short term, it doesn't matter even if you have a small sign-in period, as long as the big sign is within the validity period. Once you have a plan to leave Canada, you can renew your visa about three months in advance.

http://www.cic.gc.ca/english/index-can.asp

First find the temporary resident visa program on the above website (Canadian Immigration and Citizenship), and then you can decide whether to sign online or mail it. The processing time of online signing is about 20 days, and then you are required to issue a passport, and then you issue a passport, and it takes about 12 days to receive it. The total treatment time is about 30 days. If mailed, the total processing time is about 23 days.

Therefore, it is actually faster to apply for a small sign by mail; But the information prepared is slightly more than the online sign.