This paper mainly analyzes the problem of agricultural irrigation in certain area. There are many grain fields in this area, and grain security mainly depends on water resources irrigation. The phenomenon of heavy-over load of transformers caused by agricultural irrigation is exactly frequent. Mobile transformer system can flexibly allocate devices according to regional demand changes, and improve applicable efficiency of overall equipment, which can better deal with agricultural irrigation problems in this area and bring economic and social benefits. This paper lists and analyzes the main problems and solutions of agricultural irrigation in this area, introduces the characteristics of mobile variable pressure system and its application in agricultural irrigation, and focuses on analysis of technical advantages and potential benefits of mobile variable pressure system in agricultural irrigation and multi-scenario mode.