The invention relates to a device for grouping floating objects, such as fruit, into batches, said device including a plurality of accumulation channels through which a hydraulic current runs and each having a motor-driven push member (37) that is placed upstream of an object-stacking area (18) and is capable of moving the objects arriving upstream of the stacking area of the accumulation channel downstream, separately from the hydraulic current and over a distance less than the total distance separating said channel from a downstream holding/releasing device (14) but greater than a maximum space requirement for the objects in the horizontal direction.