The invention belongs to the technical field of domestic animal manure treatment and relates to a cattle farm cattle manure originally ecological treatment method and device. The treatment method comprises that 1), a manure storage tank 1, a manure storage tank 2, a filtered water storage tank, an oxidation pond and a fermented manure stacking place are built, 2), manure and washing water from a cattle farm are discharged into the manure storage tank 1, when the manure water in the manure storage tank 1 overflows from a manure water discharge outlet, the overflowing manure water flows into the manure storage tank 2, and the fixed manure is subjected to stacking natural fermentation in the manure storage tank 1, 3), after the manure water is subjected to natural sedimentation in the manure storage tank 2, and the treated manure water is discharged into the filtered water storage tank by a siphon and crops are irrigated with the filtered water in the filtered water storage tank, or the filtered water is discharged into the oxidation pond, is subjected to full oxidation and then is used for crop irrigation, and 4), the manure suspending in the upper layer of the materials in the manure storage tank 1 and the manure storage tank 2 is excavated by a manure excavator, then is fed into the fermented manure stacking place and then is stacked so that cattle farm cattle manure treatment is finished. The treatment method has the advantages of simple treatment processes and low treatment cost.