Water well drilling rigs are automatic drilling equipment integrating hydraulic drive, intelligent control, and a high-efficiency circulation system. They are suitable for agricultural irrigation, pasture drinking water, geothermal heat pumps, and small-scale engineering well construction. The equipment adopts a fully hydraulic power head or rotary drilling rig structure, enabling stepless speed regulation, automatic feeding, and rapid tower erection. It features fast drilling speed, high well quality, and easy operation. The entire machine can be equipped with trailer-mounted, vehicle-mounted, or tracked chassis to adapt to complex terrains such as plains, hills, deserts, and riverbanks.