下列人士不得进入加拿大：
健康严重受损者;
无法或不愿意自食其力者;
犯罪被起诉者;
因不同案件而被控告者;
就加拿大所知，从事间谍行为或颠覆民主政府者;
如果进入加拿大，可能从事以武力颠覆任何政府者;
将从事暴力活动，危及加拿大人民之生命或安全者;
将犯罪或从事有组织之犯罪者;
非真正游客者。
特殊情况：
即使曾经犯了刑事罪，最高刑期在十年以下者，或是犯了数桩轻微罪行者,主任移民官有权授予最高三十天的旅游权。
除此之外，如果有犯罪记录而无法入境者，可以向移民官证明已改过自新。如果所犯的罪在加拿大需判十年以上者，如果刑满释放后已经洁身自好了五年以上，可向移民官强调，仍有机会入境。
如果犯的是较轻的罪，有意入境者可以向加拿大政府提出证据，证明自己已改过向善，离刑期结束也已过了五年(如果犯罪时不满二十一岁，离刑期结束则是两年)。
如果打算游览加拿大，却无法确定是否能入境，不妨在出发前，先向加拿大大使馆或领事馆询问清楚，征求使馆人员的建议。以便在到达加拿大边境时，得以顺利入境。有时要参加特殊会议或因其他目的入境加拿大，却受阻于边境，因而耽搁行程。
如果无法入境，可以在特殊情况下，由加拿大之部长发给特殊许可，便可入境。此类特殊许可之有效期限不得超过十二个月，并可以随时中止。负责移民法案之部长，则有权延长特许之期限。
加拿大驻华大使馆官方原文：
Note: This is only a guide. A Canadian immigration officer will decide if you can enter Canada when you apply for a visa, or when you arrive at a port of entry.
Some people are not allowed to come to Canada. They are known as “inadmissible” under Canada’s immigration law.
There are many reasons we may not let you into Canada, such as:
you are a security risk,
you have committed human or international rights violations,
you have been convicted of a crime, or you have committed an act outside Canada that would be a crime,
you have ties to organized crime,
you have a serious health problem,
you have a serious financial problem,
you lied in your application or in an interview,
you do not meet the conditions in Canada’s immigration law, or
one of your family members is not allowed into Canada.
Normally, if you are inadmissible to Canada, you will not be allowed to enter. If you have a valid reason to travel to Canada, we may issue you a temporary resident permit.
If you have committed or been convicted of a crime, you have a few options.
If you have been convicted of driving while impaired by alcohol or drugs, you will probably be found criminally inadmissible to Canada. But as of March 1, 2012, you may be able to get a temporary resident permit for one visit without paying the C$200 processing fee. Find out more.
加拿大签证最新文章