A floor cleaning apparatus, comprising a cleaning robot and a washing base, wherein the cleaning robot comprises a robot main body and a mop assembly arranged at the rear of the robot main body, and the mop assembly is provided with at least one turntable-type mop mechanism configured to stretch downwards out of the lower end surface of the robot main body, said mop assembly comprising at least one rotary plate rotatable about a rotation axis extending vertical to the lower end surface of the robot main body and configured for detachably holding a finishing cloth; and wherein the washing base comprises an outer container, and a rinse tank and a solution-feeding mechanism that are mounted within the outer container, wherein the outer container has an opening from which the rinse tank is exposed; the rinse tank is internally provided with at least one washing component for washing the finishing cloth at a rotating state of the at least one rotary plate; the said washing component is communicated with the solution-feeding mechanism respectively; wherein the cleaning robot is configured to that, when the cleaning robot stays above the rinse tank, the finishing cloth at the bottom of the turntable-type mop mechanism downward stretches into the rinse tank and rotates along with the turntable-type mop mechanism, for washing the finishing cloth at a rotating state of the at least one rotary plate; the cleaning robot is internally provided with a lifting component, the mop mechanism comprises a housing stand, a drive motor is vertically mounted on the housing stand, and a transmission mechanism is in transmission connection with an output end of the drive motor and the turntable-type mop mechanism, for driving the rotating state of the at least one rotary plate; characterized in that the lifting component is configured for ascending and descending of the at least one rotary plate relative to the lower end surface of the robot main body, wherein an upper end of the housing stand is in transmission connection with an output end of the lifting component; wherein in the housing stand, a lifting plate is erected, an internal spline is formed in the lifting plate, the lifting component comprises a lifting motor secured in the robot main body, a driving gear sheathes the output shaft of the lifting motor, a transmission gear mounted in the robot main body through a rotary shaft meshes with the driving gear, and both the driving gear and the transmission gear are embedded in the internal spline and meshed with internal toothed racks at two sides of the internal spline respectively. the cleaning robot comprises a robot main body and a mop assembly arranged at the rear of the robot main body, and the mop assembly is provided with at least one turntable-type mop mechanism configured to stretch downwards out of the lower end surface of the robot main body, said mop assembly comprising at least one rotary plate rotatable about a rotation axis extending vertical to the lower end surface of the robot main body and configured for detachably holding a finishing cloth; and wherein the washing base comprises an outer container, and a rinse tank and a solution-feeding mechanism that are mounted within the outer container, wherein the outer container has an opening from which the rinse tank is exposed; the rinse tank is internally provided with at least one washing component for washing the finishing cloth at a rotating state of the at least one rotary plate; the said washing component is communicated with the solution-feeding mechanism respectively; wherein the cleaning robot is configured to that, when the cleaning robot stays above the rinse tank, the finishing cloth at the bottom of the turntable-type mop mechanism downward stretches into the rinse tank and rotates along with the turntable-type mop mechanism, for washing the finishing cloth at a rotating state of the at least one rotary plate; the cleaning robot is internally provided with a lifting component, the mop mechanism comprises a housing stand, a drive motor is vertically mounted on the housing stand, and a transmission mechanism is in transmission connection with an output end of the drive motor and the turntable-type mop mechanism, for driving the rotating state of the at least one rotary plate; characterized in that the lifting component is configured for ascending and descending of the at least one rotary plate relative to the lower end surface of the robot main body, wherein an upper end of the housing stand is in transmission connection with an output end of the lifting component; wherein in the housing stand, a lifting plate is erected, an internal spline is formed in the lifting plate, the lifting component comprises a lifting motor secured in the robot main body, a driving gear sheathes the output shaft of the lifting motor, a transmission gear mounted in the robot main body through a rotary shaft meshes with the driving gear, and both the driving gear and the transmission gear are embedded in the internal spline and meshed with internal toothed racks at two sides of the internal spline respectively.