The present invention relates to a method for preparing animal litter. Animal litter production method characterizes in that it is produced from dry-pressed chopped straw pellets in a production line by milling the pellets in a grinding mill (4) or (9) to fibers of 0.5-5.0 mm prior to or after the thermal processing thereof in a thermal chamber (5) with hot air of temperature between 90 to 160°C, transferring on a belt conveyor (10) to the hopper (12), stirring the litter, packaging and labelling. The process of preparing the litter exiting the thermal chamber (5) is further characterized by dust extraction performed in three stages on a belt conveyor (10), at the hopper (12) and on the packaging area (14) by dust extraction pumps (11.1, 11.2, 11.3). The resulting litter is eco-friendly, clean, dry, well absorbing liquids, very soft and versatile, suitable for all animals and livestock, as well as for biological toilets and collection of oil spills.
