The invention discloses a ground cleaning robot. The ground cleaning robot comprises a vertically arranged rectangular installation frame, an installation bottom plate connected into the installation frame in a sliding mode, a cleaning component installed on the installation bottom plate and a top shell connected to the installation frame in a sleeving mode; the installation bottom plate comprises a horizontally arranged bottom plate body and a vertical plate arranged in the front and back direction; a trapezoidal end plate is installed on the portion, far away from the vertical plate, of the bottom plate body; a driving motor is installed on the end, located on the bottom plate body, of the cleaning component; a water tank is detachably installed on the bottom plate body; a filter and an ozonator are installed on the portion, located on the side, far away from the cleaning component, of the vertical plate, of the bottom plate body. Accordingly, the ground is cleaned by filtering domestic water through the filter, and the utilization rate of the water resource is improved; cleaning belts pass through the portion between a synchronizing wheel and a roll shaft to conduct circulating cleaning on the ground, the cleaned cleaning belts are washed to be clean with purified water sprayed by an internal spray head, and the phenomenon that a rag is used for wiping the ground repeatedly, and then the rag is made to be dirty is avoided.