The invention belongs to the field of ultra-precision vibration damping, and specifically discloses a self-tuning two-freedom-degree electromagnetic vibration absorber. The vibration absorber comprises a housing, a resonance device, an inherent frequency adjustment device, and an energy consumption device. The resonance device comprises a permanent magnet and magnets, wherein the permanent magnetis disposed in the housing through a flexible connecting part. One end of the flexible connecting part is connected with a left side of the housing, and the other end of the flexible connecting part passes through the right side of the housing to be connected with a tensioning device. The number of magnets is two, and the two magnets are respectively disposed at left and right sides of the permanent magnet, and are installed on the left and right surfaces of the interior of the housing. The magnetic pole of the left magnet is the same as the left magnetic pole of the permanent magnet, and themagnetic pole of the right magnet is the same as the right magnetic pole of the permanent magnet. The inherent frequency adjustment device is used for clamping the flexible connecting part and adjusting the length of a part, taking part in vibration, of the flexible connecting part. The internal surface of the housing is provided with a conductive ring, wherein two ends of the ring are connected with the energy consumption device. The vibration absorber can absorb the vibration at two freedom degrees, is quick in response to microvibration, is high in vibration absorption efficiency, and can adjust the inherent frequency in real time.