The invention relates to the field of irrigation and water conservancy, and an evaluation method of drip irrigation uniformity. The evaluation method comprises the following steps: randomly selecting a field part of land for drip irrigation, selecting a rectangular measurement center of irrigation uniformity; uniformly setting eight soil moisture measurement points around a sideline of the rectangular measurement center; irrigating the irrigation area; measuring the soil moisture of a position 0-80 cm below each moisture measurement point 2 respectively, performing the measurement once every 20 cm in depth; calculating a standard deviation s of the soil moisture at different depths of 0 cm, 20 cm, 40 cm, 60 cm and 80 cm respectively; evaluating the drip irrigation uniformity according to the standard deviation s of the soil moisture, wherein the evaluation grade comprises four grades of being excellent, good, common and poor. The evaluation method is simple and convenient in operation, economical and practical, the provided irrigation water utilization coefficient evaluation is relatively accurate, and the water-saving efficiency of drip irrigation is further improved.