A weighing apparatus comprising: a supply means (Ms) including a tubular body which extends vertically and is filled with objects comprising powdered or granular products; a pair of cut gates (2, 3) which are used to open and close an opening at a lower end of the tubular body and rotate in opposite directions when the pair of cut gates are opened and closed, the supply means being configured to drop the objects filled in the tubular body by their own weight from a supply port defined by the pair of cut gates and the opening, when opening the pair of cut gates; a weighing means (Mw) which is supplied with the objects dropped from the supply means and weighs the supplied objects; characterised in that the supply means further comprises a control unit for controlling opening and closing operation of the pair of cut gates (2, 3)based on a weight of the objects weighed by the weighing means so that the objects of a preset target weight value are supplied from the supply means to the weighing means (Mw); wherein the control unit has a plurality of operation modes including a first mode and a second mode for the objects of the same kind, the opening and closing operation of the pair of cut gates (2, 3) for supplying the objects of the target weight value from the supply means to the weighing means (Mw) being made different among the plurality of operation modes; the control unit is configured to control the opening and closing operation of the pair of cut gates (2, 3) based on the operation mode selected from among the plurality of operation modes; and the control unit is configured to control the opening and closing operation of the pair of cut gates such that supply operation time which is time from when the pair of cut gates start to open to supply the objects of the target weight value from the supply means to the weighing means until the pair of cut gates are completely closed, is shorter when the second mode is selected than when the first mode is selected. a supply means (Ms) including a tubular body which extends vertically and is filled with objects comprising powdered or granular products; a pair of cut gates (2, 3) which are used to open and close an opening at a lower end of the tubular body and rotate in opposite directions when the pair of cut gates are opened and closed, the supply means being configured to drop the objects filled in the tubular body by their own weight from a supply port defined by the pair of cut gates and the opening, when opening the pair of cut gates; a weighing means (Mw) which is supplied with the objects dropped from the supply means and weighs the supplied objects; characterised in that the supply means further comprises a control unit for controlling opening and closing operation of the pair of cut gates (2, 3)based on a weight of the objects weighed by the weighing means so that the objects of a preset target weight value are supplied from the supply means to the weighing means (Mw); wherein the control unit has a plurality of operation modes including a first mode and a second mode for the objects of the same kind, the opening and closing operation of the pair of cut gates (2, 3) for supplying the objects of the target weight value from the supply means to the weighing means (Mw) being made different among the plurality of operation modes; the control unit is configured to control the opening and closing operation of the pair of cut gates (2, 3) based on the operation mode selected from among the plurality of operation modes; and the control unit is configured to control the opening and closing operation of the pair of cut gates such that supply operation time which is time from when the pair of cut gates start to open to supply the objects of the target weight value from the supply means to the weighing means until the pair of cut gates are completely closed, is shorter when the second mode is selected than when the first mode is selected.