Self-moving ground treatment device

The utility model relates to a self-moving ground treatment device. The self-moving ground treatment device comprises a machine body base (100) and a water tank (200), wherein a cleaning cloth is attached onto the bottom of the water tank, and the water tank (200) is connected onto the bottom surface of the machine body base (100) in an upwards and downwards floating manner. By installing the water tank and the machine body base in the floating manner to leave a certain gap therebetween, the water tank and the cleaning cloth can upwards and downwards float within a certain space range; since the force which actually acts on the ground is the gravity of the water tank and the cleaning cloth and does not include the gravity of the machine, compared with a common product, the friction force between the cleaning cloth and the ground is reduced, the phenomenon that the machine slips on the ground with water can be effectively avoided, the ground cleaning efficiency is improved and the obstacle surmounting capacity of the machine with the water tank is improved.