The present invention pertains to a drop-type automatic excrement processing device configured so that the degree of restraint on the body of the objective person to whom the device is fitted is made less. The device comprises the following: a diaper cover 1 that covers the buttocks and loins of a objective person for use such as an aged person a feces receiver 2 and a urine catching pad 3 which are fitted to the diaper cover 1 a feces and urine intake pipe 5 for receiving feces or urine discharged through the feces receiver 2 and guiding the received matter into a wastes container 4 a valve unit 6 interposed in the intermediate part of the intake pipe 5 a washing-water tank 7 for storing washing water for washing the buttocks and the like a warm wind generating means 8 for generating a warm wind used for drying the buttocks and the like after washing and a control means 9 for controlling the operation of each of the foregoing. The device is characterized in that a defecation tube 2b of the feces receiver 2 protruding from the diaper cover 1 projects below a bed 10 through a defecation hole 10h provided in the bed 10 and is connected to a funnel-shaped part 5a of the upper part of the feces and urine intake pipe 5 so as to be vertically movable and inclinable.