The utility model provides a vibration reducing and auxiliary weigh calibrating device of an aggregate weighing feed bin which is capable of reducing vibration of the weighing metering feed bin caused by impact of falling aggregate, simplifying weigh calibrating process and reducing labor cost. The vibration reducing and auxiliary weigh calibrating device of the aggregate weighing feed bin comprises a bucket-shaped sand-gravel weighing feed bin. A bearing and a support shaft are installed around the sand-gravel weighing feed bin respectively, the ends of the support shaft are respectively provided with an upright single-pendulum oscillating bar, and the ends of the single-pendulum oscillating bar are respectively provided with a weight-oscillating and weigh-calibrating bearing platform. Vibration can be reduced by adopting the vibration reducing and auxiliary weigh calibrating device, and service life of a weighing device is prolonged. Weigh calibrating weights are directly laid on the weight-oscillating and weigh-calibrating bearing platform during weigh calibration of the aggregate metering feed bin, thereby being convenient to weigh and calibrate, and reducing labor cost.