The invention relates to a method and a device for grouping fragile floating objects, such as floating fruits, in batches in at least one accumulation channel. An upstream portion (12) of at least one accumulation channel is supplied with objects transported by a hydraulic current as far as a downstream end of the latter provided with a retaining/releasing device for retaining/releasing the objects. The speed of the hydraulic current is adjusted so as to bring about a hydraulic superposition of the objects retained in a superposition zone of the accumulation channel against the retaining/releasing device which is closed so as to retain the objects.