The invention discloses a nondestructive detection method for the web plate bonding area of a wind
turbine blade. The nondestructive detection method comprises the following steps: firstly, determining the starting point and the finishing point of the web plate bonding area; and secondly, performing nondestructive detection on the overall web plate bonding
adhesive area B-F within the chord direction range by using ultrasonic longitudinal
waves. The nondestructive detection method for the web plate bonding area of the wind
turbine blade provided by the invention has the benefits as follows: the specific location of web plates in the blade is determined precisely by positioning the web plate core materials, and whether the web plates are dislocated or not can also be determined; moreover, the effective width of the bonding
adhesive of the web plates can be detected in the true sense, that is, not only is the width of the bonding
adhesive detected, but also the measured bonding width isensured to be consistent with that required by drawings; and besides, through the detection on the defects of the adhesive layer in the bonding area of the web plates, whether the bonding between theweb plates and the main beams meets the drawing and
process requirements or not is recognized, and the bonding quality of the blade is ensured.