Electrostatic loudspeaker is speaker using static electricity to the capacitor plates of the work, its structure, from the positive and negative electrodes are opposite and capacitor, so called capacitor loudspeaker. The speaker as an electroacoustic transducing device, the relationship we have to know from the conversion of human power and sound to start. As early as 1837 Page began using electromagnet sound. But people really know the electric and acoustic conversion of magic in February 14, 1876, after Alexander Graham Bell made the most important in the history of a patent "phone", the invention allows the human voice and can spread farther than yelling. The relationship between electricity and sound conversion is deeply rooted in the hearts of the people, more and more people are studying.