The invention provides a high-pitch loudspeaker, a loudspeaker box and an electronic product using the same. The product comprises two panels and two high-pitch loudspeakers. The two panels are fixedly connected to form a compound element. The outer surface of the compound element is a cambered surface type curved surface, and the central area of the panel is provided with a groove in which the two high-pitch loudspeakers are fixed. The two high-pitch loudspeakers are distributed in opposite directions with an angle of 180 degrees. The radiating area of a diaphragm or a cone of each high-pitch loudspeaker is between 78 square millimeters and 2826 square millimeters. The radiating diameter of sound is between 5m and 50m. In the cambered surface type curved surface of the compound element connected by two panels, the radian radius of the curved surface in the central area is between 100mm and 1000mm, the radian radius of the outside diameter curved surface is between 5mm and 20mm, and the thickness of the compound element formed by the two panels is between 5mm and 50mm. The material used for the panel is one of engineering plastics, wood and aluminum-zinc alloy.