Separable bedridden defecation and urination nursing system capable of automatically cleaning dirt and adding water

The invention relates to a separable bedridden defecation and urination nursing system capable of automatically cleaning and adding water, which comprises a host, an excrement collector and a special anti-bedsore mattress, and is characterized in that a separable water tank is mounted on the right side of the host; the separable water tank comprises a machine body shell, a multifunctional interface, a sewage tank, a clear water tank, a driving wheel, a circuit board, a battery pack and a sensor, the machine body shell is composed of a shell and an upper cover, the upper cover is hinged to the top of the shell, the multifunctional interface is fixed to the left side of the shell, and the clear water tank is installed at the bottom of the shell; the clear water tank is composed of a cold water tank, a hot water tank and a heater. According to the separable bedridden defecation nursing system capable of automatically cleaning and adding water, through the arrangement of the separable water tank, when the separab