The invention provides an irrigation control system and method. The system comprises a server side, multiple AP (access point) devices and a control terminal, wherein the server side is used for generating and outputting control signals; the AP devices are connected with the server side and used for receiving and outputting the control signals; the control terminal is connected with the AP devices, further connected with multiple controllable irrigation devices and used for forming corresponding control commands according to the control signals and controlling working states of the corresponding irrigation devices according to the control commands; the control terminal correspondingly forms feedback information according to the working states of the irrigation devices and sends the feedback information to the server side. The technical scheme has the benefits as follows: the irrigation devices can be controlled accurately without limitation of the time and the distance, the working states of the irrigation devices can be known through the server side, and defects that control on the irrigation devices is affected by the distance and the working states of the irrigation devices cannot be known timely in the prior art are overcome.