In order to solve the problem that the application environment of the gate water measuring formula in the irrigation area is harsh and the water measuring accuracy deviation is large, the automatic control technology is introduced in the water measuring test research, and the gate opening is adjusted through the negative feedback system.In this paper, through a large number of data statistics, the flow pattern analysis of artificial intelligence is carried out,the average submergence depth is connected with the error, and the error correction method under different coefficients is found. At the same time, the measurement error is adjusted according to the current environmental state, and finally the measurement error is controlled within 5%.Compared with the traditional artificial regulation method, the introduction of artificial intelligence enhances the engineering practicality of water measurement test, and improves the flexibility and scope of application of water measurement of hydraulic structures.