侄儿要来Niagara上高中，加拿大学生签证办理复杂吗？

这个网页有三个选项：

Find a school you can attend

Get a study permit

Extend your study permit

第一个是找到学校，第二个是得到签证，第三个是申请延期

第二个里面还有一些选项，我猜你也许需要的是这个： http://www.cic.gc.ca/english/study/study-who.asp

To be eligible to study in Canada

• You must have been accepted by a designated learning institution in Canada.
• You must prove that you have enough money to pay for your:
  
  • tuition fees
  • living expenses for yourself and any family members who come with you to Canada and
  • return transportation for yourself and any family members who come with you to Canada.
    
• You must be a law-abiding citizen with no criminal record and not be a risk to the security of Canada. You may have to provide a police certificate.
• You must be in good health and willing to complete a medical examination, if necessary.
• You must satisfy an immigration officer that you will leave Canada at the end of your authorized stay.
  

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  这些回答了你的问题了吗？