加拿大工作许可申请有三种方式：加拿大境外申请、加拿大境内申请、入境口岸申请（在边境递交工作许可申请）。
如果符合下列情况之一，您可以在加拿大境内申请工作许可：
- 你有一个有效的学习或工作许可
- 您的配偶、同居伴侣或父母持有有效的学习或工作许可
- 您有资格获得毕业后工作许可并且您的学习许可仍然有效
- 您的毕业后工作许可证已过期或将在未来 4 个月内过期
- 您或您的配偶、同居伴侣或父母持有有效期为 6 个月或更长时间的临时居民许可
- 您正在等待永久居留申请的审理结果
- 加拿大境内配偶团聚类
- 临时居留证持有人类别
- 您提出或将提出难民保护申请
- 您已被加拿大移民和难民委员会认可为公约难民或受保护人
- 您可以在没有工作许可的情况下在加拿大工作，但您需要工作许可才能从事不同的工作（这不适用于商务访客）
- 您是加拿大-美国-墨西哥协议 (CUSMA) 下的交易员、投资者、公司内部派遣员工或专业人士
You can apply from inside Canada if one of these applies:
- you have a valid study or work permit
- your spouse, common-law partner or parent has a valid study or work permit
- you’re eligible for a post-graduation work permit and your study permit is still valid
- you have a post-graduation work permit that has expired or will expire in the next 4 months
- you or your spouse, common-law partner or parent has a temporary resident permit that is valid for 6 months or more
- you’re waiting on a decision on an application for permanent residence for the
- in-Canada spousal class
- temporary resident permit holder class
- you made or will make a claim for refugee protection
- you’ve been recognized as a Convention refugee or protected person by the Immigration and Refugee Board of Canada
- you’re allowed to work in Canada without a work permit but you need a work permit to work in a different job (this does not apply to business visitors)
- you’re a trader, investor, intra-company transferee or professional under the Canada–United States–Mexico Agreement (CUSMA)
