About Canadian spouse immigration

As you have not reached the legal age in China, the China Municipal Government will not issue you a marriage certificate. I suggest that your girlfriend send you an invitation letter first, and go to Canada in the form of a visiting visa, where she can register for marriage. After getting the marriage certificate, even if you return to China, she can continue to guarantee you.

Important materials are nothing more than materials to prove the authenticity of your marriage, including your correspondence, telephone bills, daily photos and so on.