Metering control method and system and mixing station

The invention relates to the field of operation machinery, and provides a metering control method and system and a mixing plant, and the method comprises the steps: under a first metering strategy, obtaining a metering residual value based on a target metering value of a current disc material and an actual metering value obtained by a metering device in real time; when the metering residual value is smaller than or equal to a first threshold value, converting rough weighing metering into fine weighing metering; in the fine weighing and metering process, when the metering residual value is located in a first metering value interval, performing first fine weighing and metering on the material in a fine weighing and pulse metering mode by adopting a first fine weighing and pulse duration, and after the fine weighing and pulse are performed once by adopting the first fine weighing and pulse duration, performing second fine weighing and metering on the material under a first set condition; and based on the meterin