A dosing device for feeding an infusion product for making filter bags, comprising: - a tower for containing loose infusion product; - at least one pair of tubular channels (2, 3) for feeding product connected to and in communication with the tower; the pair of tubular channels (2, 3) projecting from the containing tower and configured to allow the picking up of the product from the tower and the release of a quantity of product at its outer free end; - a plurality of containers for receiving the infusion product from the tubular channels (2, 3) and each having a wall which is movable between a closed position of the container and an open position for discharging a programmed dose of product; the dosing device being characterised in that it further comprises: - a movable platform positioned under the tubular channels (2, 3), and on which is associated the plurality of containers located one after the other along the platform; the platform being configured for moving, in sequence, each container to a first position for feeding a first quantity of product, in weight, less than the weight of a programmed dose, by falling from a first tubular channel of the pair of channels (2, 3), and, subsequently, to a second position, downstream of the previous position relative to a feed direction of the platform, for feeding a remaining quantity of product, in weight, useful for reaching the weight of the programmed dose, falling from a second tubular channel of the pair of channels (2, 3) and again, subsequently, in a zone for discharging the dose of programmed infusion product; - a plurality of weighing elements positioned along the path followed by the platform and configured to control the weight of the product fed by the first and second tubular channels (2, 3) in each container; each weighing element being positioned on the platform, which is movable with the platform, and under a corresponding container; - a control unit connected to each tubular feeding channel (2, 3), to each weighing element and to the platform and programmed to control the quantity of product fed from the first and second channels (2, 3) to each container and the relative movement of the platform. - a tower for containing loose infusion product; - at least one pair of tubular channels (2, 3) for feeding product connected to and in communication with the tower; the pair of tubular channels (2, 3) projecting from the containing tower and configured to allow the picking up of the product from the tower and the release of a quantity of product at its outer free end; - a plurality of containers for receiving the infusion product from the tubular channels (2, 3) and each having a wall which is movable between a closed position of the container and an open position for discharging a programmed dose of product; - a movable platform positioned under the tubular channels (2, 3), and on which is associated the plurality of containers located one after the other along the platform; the platform being configured for moving, in sequence, each container to a first position for feeding a first quantity of product, in weight, less than the weight of a programmed dose, by falling from a first tubular channel of the pair of channels (2, 3), and, subsequently, to a second position, downstream of the previous position relative to a feed direction of the platform, for feeding a remaining quantity of product, in weight, useful for reaching the weight of the programmed dose, falling from a second tubular channel of the pair of channels (2, 3) and again, subsequently, in a zone for discharging the dose of programmed infusion product; - a plurality of weighing elements positioned along the path followed by the platform and configured to control the weight of the product fed by the first and second tubular channels (2, 3) in each container; each weighing element being positioned on the platform, which is movable with the platform, and under a corresponding container; - a control unit connected to each tubular feeding channel (2, 3), to each weighing element and to the platform and programmed to control the quantity of product fed from the first and second channels (2, 3) to each container and the relative movement of the platform.