PROBLEM TO BE SOLVED: To provide a gas station management system capable of suppressing an abnormal operation (unfavorable operation) by a refueling person. A surveillance camera 22 photographs the vicinity of a weighing machine 2. The management device 23 manages refueling by the measuring machine 2. The management device 23 determines whether or not there is an abnormality related to refueling of the refueling person from the image (video) taken by the surveillance camera 22. Before the start of refueling by the refueling device, the management device 23 notifies the refueling person of the result determined by the management device 23 in the previous refueling by using the monitoring device 18 of the measuring machine 2. [Selection diagram] Fig. 1
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