Abstract: Central fulcrum irrigation machine has many advantages such as good spraying quality，high degree of automation，high land use efficiency，strong adaptability and not requiring a lot of ground engineering facilities etc.It is suitable for irrigation of all kinds of texture of soil，as well as a variety of field crops，vegetables，economic crops and grass，and so on.As a modern agricultural equipment，central fulcrum irrigation machine must be designed，managed and maintained scientifically so as to obtain high yield and quality of crops.