The improvement of agricultural water supply measurement facility can realize amount control and quota management，ensure agricultural water price to act as a price level.In order to implement the notification of accelerating the agricultural water price comprehensive reformation published by National Development and Reform Commission，improve the water supply measurement facility，push forward the agricultural water price comprehensive reformation，this article gives a brief analysis on the principles and utility condition of commonly used water supply measurement facility based on actual situation in Jiangxi province，and classifies them to discuss the suitable water supply measurement ways in different engineering conditions.