Yes - your US overstay will impact your ability to get a visa for Canada. Any sort of temporary visa (visitor visa, work permit, study permit) will be refused. If you want to come to Canada, you will need to focus on applying to immigrate and become a PR.I overstay usa for year and 4month and I want to go back my country and apply for canada supose visa,it it my us overstay will effect for canada visa?