[COLOR=Navy]hi,everybody
my passport deadline almost come, so i should postone passport to get new one. But i will go back to china in this winter.
i need to know can i do it in China, is it no problem? or i should do it in Canada?
who did it in China before? can you tell me, please give me some idea [/COLOR][COLOR=DarkSlateBlue]thank you~[/COLOR]

如果是单纯的护照延期，直接去当地的出入境管理处办理。
但是，看你的情况，应该还牵涉到STUDY PERMIT和VISA续签的问题。不过，你的护照如果不办延期，那STUDY PERMIT和VISA办理延期也没有意义。

你可以现在把你的护照寄到渥太华去办理延期。然后，办STUDY PERMIT和VISA的续签。

[COLOR=DarkSlateBlue]if i send to Ottawa, do you know how long need to get?[/COLOR]

7-15天