The invention discloses an automatic sorting 
treatment system for kitchen waste and a treatment process, relates to the field of 
domestic waste treatment, and solves the problems that existing kitchenwaste is large in reserve and threatens 
human health. The automatic sorting 
treatment system comprises a transport vehicle, a material collecting bin, a water filtering 
elevator, a large-
foreign matter sorting 
machine, a fine crushing and sorting 
machine, an 
extrusion dehydrator, an oil-water separation device, a secondary 
pendulum bob pulping 
machine and an anaerobic 
fermentation tank, wherein the water filtering 
elevator is used for receiving the kitchen waste uniformly conveyed by the material collecting bin and carrying out water filtering treatment; the large-
foreign matter sorting machine is used for sorting large foreign matters in the kitchen waste residues; the fine crushing and sorting machine is used for carrying out fine crushing on the large sorted kitchen waste residues andsorting out inorganic impurities; the 
extrusion dehydrator is used for carrying out 
extrusion dehydration treatment on the finely sorted kitchen waste residues; the oil-water separation device is usedfor mixing kitchen waste swill obtained after water 
filtration and kitchen waste 
slurry obtained after extrusion 
dehydration and then carrying out oil extraction and 
dehydration treatment; the secondary 
pendulum bob pulping machine is used for finely pulping the kitchen waste residues subjected to oil extraction and dehydration; and the anaerobic 
fermentation tank is used for carrying out anaerobic 
fermentation on kitchen waste liquid subjected to oil extraction and dehydration. The automatic sorting 
treatment system is high in treatment efficiency, good in 
treatment effect, energy-saving andenvironmentally-friendly.