A method for recycling abrasive material used for high pressure waterjet cutting from cutting sludge wherein the cutting sludge is conveyed to a vibrating separator separating smaller and larger particles from the abrasive which is then deposited into a water-permeable container; after excess water is displaced, a wet abrasive is put into a storage tank for wet abrasive, conveyed by a conveyor to a drying oven which is heated by a heating elements, aerated by a heated air; wherein the particles of dry abrasive are conveyed through an outlet for dry recycled abrasive from the drying oven to an output vibrating separator from which a dried abrasive material is passed through the screen and put into a storage container/bulk bag for the dry recycled abrasive, the method being characterised in that the wet abrasive is conveyed by a screw conveyor, in that the drying capacity 101,4 is kg/hour, in that the drying oven is aerated with pre-heated air brought in by a drying blower, which keeps the wet abrasive afloat, the method being further characterised in that the temperature in the drying oven is regulated in the range from 130 °C to 180 °C by switching off and on the heating elements and an intensity of batching of the wet screened recycled abrasive conveyed by the screw conveyor, wherein an adjusting process is started after switching off the heating elements for the first time, the heating elements are switched off when the temperature in the drying oven exceeds 160°C and switched on when the temperature in the drying oven drops below 155 °C and the batching of wet abrasive is turned off when the temperature drops below 140 °C and turned on when the temperature rises again, wherein when the heating elements are switched off, the intensity of batching of wet abrasive is increased by specified step, when batching of wet abrasive is turned off, the intensity of batching of wet abrasive is reduced by the specified step, when batching of wet abrasive is turned off followed after switching off the heating elements the intensity of batching is reduced by half of the last specified step and when heating elements are switched off followed after turned off batching of wet abrasive the intensity of batching is increased by half of the last specified step. the wet abrasive is conveyed by a screw conveyor, in that the drying capacity 101,4 is kg/hour, in that the drying oven is aerated with pre-heated air brought in by a drying blower, which keeps the wet abrasive afloat, the method being further characterised in that the temperature in the drying oven is regulated in the range from 130 °C to 180 °C by switching off and on the heating elements and an intensity of batching of the wet screened recycled abrasive conveyed by the screw conveyor, wherein an adjusting process is started after switching off the heating elements for the first time, the heating elements are switched off when the temperature in the drying oven exceeds 160°C and switched on when the temperature in the drying oven drops below 155 °C and the batching of wet abrasive is turned off when the temperature drops below 140 °C and turned on when the temperature rises again, wherein when the heating elements are switched off, the intensity of batching of wet abrasive is increased by specified step, when batching of wet abrasive is turned off, the intensity of batching of wet abrasive is reduced by the specified step, when batching of wet abrasive is turned off followed after switching off the heating elements the intensity of batching is reduced by half of the last specified step and when heating elements are switched off followed after turned off batching of wet abrasive the intensity of batching is increased by half of the last specified step.