The invention discloses a plate buckling type belt fastener and belongs to the technical field of belt fasteners. The plate buckling type belt fastener comprises a base, a locking part and a clampingplate, wherein the clamping plate is in rotation connection with the base and is closely buckled on the base under the pressure action of the locking part. According to the plate buckling type belt fastener, bosses and grooves which are distributed in array manners are processed on the base and the clamping plate, the friction force of the belt fastener and a belt is increased, the belt is prevented from sliding backward after being locked, grooves or holes are not needed to be processed in the belt, and the service life of the belt is prolonged; the design is attractive and elegant, the beltfastener is easy for decoration, and fastening or loosening of the locking part is convenient to control.