The present invention relates to a surface irrigation water flow movement measuring instrument. The interior of the cylinder body is equipped with power supply, data acquisition sensor and data processing system. Its sensing portion is contact sensor, on the circuit board several contact points are set, and a part of them can be used as an electrode, and the lower portion of cylinder body is equipped with water inlet and water outlet, and when the water is flowed into said cylinder body, the water and all the contact points are formed into the loop to give out electric signal, said signal canbe collected by data acquisition device, and fed into data processing system, coded, stored and processed, and can be displayed on the screen. It can be used for monitoring surface irrigation water flow movement.