The invention provides an intelligent irrigation management system, comprising an application management platform, a cloud data center, a wireless transmission platform and an intelligent sensing platform; the application management platform comprises an intelligent terminal and irrigation management software; the intelligent sensing platform comprises a data acquisition controller, a LoRa transmission module, a soil moisture sensor, a soil temperature sensor, a water level sensor, a meteorological environment sensor, a water pump and an electromagnetic valve; the cloud data center comprises acloud server; the cloud data center receives the information, collected by the intelligent sensing platform, by means of the wireless transmission platform, generates crop water demand forecast and irrigation forecast according to the collected information and a preset irrigation water demand model, and transmits the generated crop water demand forecast and irrigation forecast to the irrigation management software; the irrigation management software generates a corresponding irrigation strategy. The intelligent irrigation management system provided by the invention can avoid the problems in the prior art, and can set different irrigation strategies according to the different requirements of the crops for watering, thus realizing personalized watering.