The utility model relates to a
greening watering device, and provides a photovoltaic watering device, which comprises a light sensor; the
water supply module comprises a
water storage tank, a first water pump and a first flow switch, a water outlet of the
water storage tank is connected with the water inlet end of the first water pump through the first flow switch, and a
liquid level sensor is arranged in the
water storage tank; the water sprinkling module comprises a water sprinkling
machine and a second flow switch, and the water sprinkling
machine is connected with the water outlet end of the first water pump through the second flow switch; the power generation module comprises a photovoltaic module and a
power supply unit, the photovoltaic module is connected with the
power supply unit to charge the
power supply unit, and the power supply unit is connected with the light sensor, the
liquid level sensor and the first water pump to supply power; and the control module is electrically connected with the optical sensor, the
liquid level sensor, the photovoltaic module, the power supply unit, the sprinkler and the first water pump. The photovoltaic watering device can generate power through
solar energy, does not need to be additionally connected with an
electric power system, and does not occupy human resources.