NOVELTY - Method for preparing pet food by utilizing household domestic waste, involves pre-processing kitchen domestic waste products, slitting, crushing products, adding bran and rice bran, uniformly mixing the materials, steaming, fermenting mixture using e.g. Aspergillus carbonarius and Monilia tropicalis based on solid state in presence of oxygen, adding Lactobacillus plantarum, fermenting, drying fermented mixture, mixing, extruding, puffing and pelleting obtained product.    USE - The method is useful for preparing pet food (claimed).    DETAILED DESCRIPTION - Method for preparing pet food by utilizing household domestic waste, involves (a) pre-processing internal organs, bone and vegetable melon and fruit root stem lobe cortex, meal, poultry and aquatic product of kitchen domestic waste products as raw material, washing the materials using water, continuously stirring, filtering mixture to remove mud, sand, oil stain and sewage of domestic garbage, and cutting material to length of 1-2 cm, (b) mixing pre-processed kitchen domestic garbage with fermentation substrate, adding 10-15% bran and 3-5% rice bran and uniformly mixing the materials, (c) performing steam sterilization of the mixture in cooking vessel, steaming the mixture for 30 minutes, stacking the mixture and cooling the mixture to 40 degrees C, (d) adding strain of bacteria, yeast and mould into shake flask, sterilizing and packaging in triangular flask, fermenting the culture, shaking the culture at 37 degrees C and 200 revolutions per minute (rpm) for 48 hours, sterilizing mixture, cooling and inoculating yeast at 37 degrees C and 200 rpm for 48 hours, (e) adding 2.5% Aspergillus carbonarius, 2% Monilia tropicalis and 1.5% Bacillus subtilis based on a solid state in the presence of oxygen to the cooled mixture and fermenting the mixture at 25 degrees C for 48-96 hours, (f) adding 3% Lactobacillus plantarum and fermenting the mixture at 30 degrees C for 36-48 hours under sealed condition, (g) fermenting the mixture, drying the mixture until the water content is less than 25-30%, (h) crushing the dried material to granularity of 0.1-0.5 cm, and (i) mixing, extruding, puffing the mixture at 120-160 degrees C, 200-350 rpm and 0.8 MPa for 10-20 seconds, and pelleting the obtained product.