边界关卡，亦称边境管制站，是人口和物品进出边界接受检查的地方。 人口和物品通常需要许可穿越边界关卡。 陆路边界关卡的成立，通常由接让边界的政权认许，让许可人口及物品进出管制的边界。 各政权及国际组织成员国之间可实行国际协议，例如: 神根公约，减少、甚至取消相互之间的边境管制站。 海、陆、空三路边界关卡、及其他口岸的出入境、海关设施各有分别。

边境关卡有执法人员驻守把关，通常用于两种功能:

A border checkpoint is a place, generally between two countries, where travelers or goods are inspected. Authorization often is required to enter a country through its borders. Access-controlled borders often have a limited number of checkpoints where they can be crossed without legal sanctions. Arrangements or treaties may be formed to allow or mandate less restrained crossings (e.g. the Schengen Agreement). Land border checkpoints (land ports of entry) can be contrasted with the customs and immigration facilities at seaports, international airports, and other ports of entry.