Does the US visa refusal affect Canadian visas?

The US visa refusal does not affect the Canadian visa.

According to the current regulations, the United States no longer stamps visa refusal, so if you are refused a visa by the United States, it will not affect your application for a Canadian visa.

It may be problematic to be refused a visa by the United States.

If you are refused a visa in the United States, it may indicate that there are some problems with your conditions and make the visa officer think that you have a potential immigration tendency. Therefore, it may also make it more difficult for you to apply for a Canadian visa.

Analyze the reasons for being refused a visa.

If your visa application to the United States has been refused for four consecutive times, it means that you may not fully understand the reasons for the refusal. Now, you need to analyze the reasons for the refusal (visa officers usually don't tell you clearly, but only send a letter of refusal with immigration tendency).

Provide sufficient materials.

When applying for a Canadian visa, make sure that the materials provided can make up for your problems in this respect, so that you can successfully pass the application.