A suitcase lock comprises a manually operable actuator mounted in a bowed handle of a suitcase to actuate a guiding means which incorporates a combination lock and which in turn moves a release plate. The release plate has two opposite ends connecting with two locking means which are unlocked upon moving the release plate. The guiding means is provided with a means that prevents the suitcase lock from unlocking when the suitcase is not in a correct position.