Remote controller of closestool, closestool cover assembly and closestool

The application discloses a remote controller (10) of a closestool, which has an assembled state and a separated state relative to the closestool (30), the closestool is provided with an external electric connection part (38), and the remote controller comprises a touch screen operation module (12), a normal operation module (14), an internal power supply part (16) and an internal electric connection part (18). The touch screen operation module and the common operation module can control the closestool. And the internal electric connection part is electrically connected with the internal power supply part and the common operation module. In the separated state, the internal power supply part is switched into a power supply mode and supplies power to the touch screen operation module and the common operation module. And in the assembled state, the internal power supply part is switched into a charging mode, and the internal electric connection part is connected with the external electric connection part, so th