移民局网站上给出了超签和普签的区别为：超签在首次入境的时候可以获得最长为2年的停留期。 但是是首次入境，个人觉得超签没意义，完全可以申请普签，如果有需要的时候，在续签的时候按照超签材料准备然后获得最长为2年的续签签证。
The Super Visa is a multi-entry visa that provides multiple entries for a period up to 10 years. The key difference is that the Super Visa allows an individual to stay for up to two years on initial entry into Canada, while a 10-year multiple entry visa would only have a status period for each entry of six months only.