Do i need a visa for Canada if i am just switching airplanes on my way to china?

I am a Chinese international student in the U.S. I have to stay in the air port over night, becaue my plane take off in the next morning.
Yes, you will need to get a free of charge Canadian Transit Visa unless you

hold a valid U.S. visa

transit via Vancouver airport

travel on Cathay Pacific Airways, China Airlines, or Philippine Airlines

travel directly to Beijing, Hong Kong, Shanghai, Guangzhou, Manila, or Taipei



Source(s):

http://www.cic.gc.ca/english//department idtphp ..

http://www.migrationexpert.com/canada/vi ..

http://www.cic.gc.ca/english/information ..

http://www.cic.gc.ca/english/information ..

http://www.timaticweb.com/cgi-bin/tim_we ..
As longs as you don