The biggest feature of solar photovoltaic irrigation DC pumps is not burn fuel consumption and other organic energy-free, conducive to the protection and conservation of resources. And long service life of solar cells, maintenance costs low for perennial arid rainwater rich areas. However, some areas are far away from the power grid and the transportation is inconvenient. So far, solar water pump is the most economical and reasonable solution to this problem simple and effective method. Solar photovoltaic pumps can be used both for agricultural irrigation and household pumping.