Disclosed are an assembled folding feces and urine separation toilet bowl and a use method thereof. The assembled folding feces and urine separation toilet bowl comprises a toilet bowl surface, a feces pool supporting bag, a toilet bowl opening, a rotating shaft, a feces supporting frame, a urine supporting frame, a cushion, four supporting legs, four mounting holes and a urinal supporting bag, the toilet bowl surface is of an axially symmetric structure, and the four mounting holes are used for fixing the supporting legs. A urine bag sleeves a urinal supporting frame, urination can be finished, and the urine bag and a feces bag sleeve a urinal and a feces pool supporting frame respectively, so that defecation can be finished. The urine bag is packed after urination, the packed feces bag, toilet paper and disinfectant tissues are placed into an outer feces bag containing adsorbing agents after defecation, the outer feces bag is sealed, and bagged feces and urine can be stored for a long time and can be used for producing fertilizers, biological products, feed, methane and the like. Water and a special space are omitted, and the toilet bowl is small in size, light in weight, convenient to convey and distribute and simple to use and can be directly used for a family without a toilet, an earthquake stricken area, a flood stricken area and emergency water failure.