Intelligent plate gate device with remote monitoring and control is installed in the five branches of the westnorth trunk of Liaohe irrigation area, and the monitoring test for automatic water measurement of channel is carried out.Through test data, the actual application effect of remote monitoring and control intelligent gate device is analyzed and verified.The result shows that the application effect of this technology is good, and it can realize remote intelligent control of water conveyance and distribution in open channel of irrigation area, real-time monitoring and statistics of discharge water flow data.The comprehensive accuracy of flow measurement error is less than 5%, and the accuracy and reliability are good.This system is suitable for small open channel water conveyance control in irrigation area, and provides an effective means for water conveyance facilities transformation in irrigation area.