Stone water grinding device with good fastening effect

The stone water grinding device with the good fastening effect comprises a supporting mechanism and a water grinding mechanism, a driving motor is placed in an inner cavity of a supporting base, the stability of a base shell is improved through installation of a supporting outer frame plate, a rotating shaft is driven by the driving motor to rotate, and therefore the machining position of a machining mechanism is adjusted; by replacing the rotating shaft and adjusting the distance between the bottom end of the water grinding mechanism and the ground, the practicability and flexibility of the device are improved, the machining mechanisms are placed at the two ends of the telescopic supporting rod through transverse supporting of the telescopic supporting rod, the water grinding plate is installed at the bottom end of the containing base plate, and the rotating shaft is driven by the rotating motor to rotate; and the distance between the water grinding plate placed at the bottom end of the placement base plate