The invention discloses an ultra-small circularly polarized antenna based on an electromagnetic ultra-resonator, the antenna comprises a dielectric substrate and a metal floor, and is characterized inthat a plurality of laminated capacitors, a feed device and a metal loop connecting end are formed on the dielectric substrate; first electrodes of the laminated capacitor are electrically connectedwith one another to form a first common electrode of the laminated capacitor; the feeding device is connected to the first common electrode of the laminated capacitor, and the metal loop connecting end is arranged on the second electrode of each laminated capacitor; each metal loop connecting end is electrically connected with one end of a metal column, and the other end of each metal column is electrically connected with the metal floor; and the metal floor, the metal column and the laminated capacitor which are electrically connected form a super-resonator current loop. By adjusting the length of the laminated capacitor and the length of the metal loop, large equivalent capacitance and equivalent inductance are constructed, small resonant frequency is obtained, and ultra-small antenna design is achieved.