NOVELTY - The generator comprises first and second electrode plates (10,20) that are positioned adjacent to and facing each other. An ion-containing liquid droplet (30) is positioned between the first and second electrode plates. A power generation unit (40) for producing electricity using alternating current (AC) voltage is generated between the first and second electrode plates. The liquid droplet is provided with water. The liquid droplet is provided with an electrolyte solution in which an ionic compound is dissolved.    USE - Micro power generator used to produce electricity by vibrating liquid droplet.    ADVANTAGE - The amount of electric energy and efficiency of the AC voltage produced from the power generation unit is increased. The upper-positioned first electrode plate, which has a high change rate of the contact area with the liquid droplet during vibration as compared with the second electrode plate, secures a larger surface area capable of contacting with the liquid droplet and simultaneously is provided with hydrophobic properties, which makes possible to maximize power generation effects. Since the micro power generator and power generation method using a liquid droplet generates power even by small vibration, the power generation is performed using the vibration that is obtained from various sources including user's living vibrations, so that the micro power generator and power generation method is applied to the development of an environment-friendly power generation system. The first and second electrode plates are provided with any one of hydrophobic and hydrophilic properties, thus changing factors such as contact angle and contact area between each of the first and second electrode plates and the liquid droplet, thus being capable of finding higher generating efficiency.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a power generation method using a liquid droplet.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the micro power generator.    Electrode plates (10,20)    Ion-containing liquid droplet (30)    Power generation unit (40)    Vibrating device (50)    Hydrophobic or hydrophilic material (60)