Abstract: Armour plate with multi-layer structure, comprising on the front side a first layer of ceramic material made up of abutting tiles, on the rear side a second layer of fibre-reinforced plastic laminate, and between these layers a third layer consisting of several mutually bonded metal plates. The first layer is fixedly connected to the respective outer plate of the third layer by means of a strong adhesive bonded joint. The metal plates of the third layer as well as the second layer are joined together either by means of an adhesive bonded joint the strength of which is sufficient to hold the structure together when the armour plate is unstressed, but under stress when a missile hits the armour plate, will easily come loose at the point of impact, or by other means. The bond between the metal plates of the third layer as well as between the second and third layer extends either over the whole surface or only part thereof for instance only at the edges of the armour plate.