The utility model discloses an area-array ion storage system which comprises an ion generating portion, an ion storage portion, a second-end electrode, an intermediate electrode, a first insulator and a second insulator, wherein the ion storage portion comprises a first-end electrode electrically connected with the ion generating portion and provided with a plurality of holes, the second-end electrode is provided with a plurality of holes, the intermediate electrode is provided with a plurality of holes, the first insulator is annular and is clamped between the first-end electrode and the intermediate electrode which are insulated, and the second insulator is annular and is clamped between the intermediate electrode and the second-end electrode which are insulated. As the ion storage portion is machined relative thin according to the utility model, ion extraction consistency is facilitated and broadening of ion migration peak is reduced. Besides, as the first insulator and the second insulator are respectively provided with a micropore, ions are prevented from colliding with insulating materials on both sides while the ions in oscillation or thermal motion inside the storage space, thereby preventing charge transfer and unstable storage and ion loss resulting from discharge accumulation.