The utility model discloses an electric submersible pump airlock automatic releasing device, which comprises a body, wherein the body is of a tubular structure, an inner boss integrally formed with the body is arranged in the body of the tubular structure, a positioning snap ring is arranged at the position, close to the inner boss for a certain distance, of the upper end of the inner boss, a movable valve core is clamped between the positioning snap ring and the inner boss, and the middle part of the valve core is provided with a runner. The electric submersible pump airlock automatic releasing device has the beneficial effects that when airlock occurs in a producing well, the electric submersible pump can automatically release the airlock without adding too much cost, so that an offshore oilfield producing well can fast recover production, the production hourly rate of the producing well is improved, and loss of yield is avoided, and meanwhile, compared with the traditional manual airlock releasing, personnel interference is not needed, the offshore operation risk of the personnel is reduced, a large number of operating cost for oil well fault handling is saved, the reliability is high, and the safety factor is high.