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At present, electromagnetic ultrasonic wave is used to judge the bonding quality of engine thermal protection structure parts, and the inspection personnel can only evaluate the bonding defects through a-wave shape returned by ultrasonic wave. This detection method has low efficiency, low accuracy, high requirements for personnel and can not realize online detection, which seriously affects the mass production of products. In view of this kind of situation, a set of adhesive quality evaluation system is established by means of data visualization and intelligent image analysis. The system includes filtering the measured data; expanding the two-dimensional model according to the normal function according to the size of the workpiece; filling the defect information for the two-dimensional model to realize the visualization of the bonding effect; using the binary method to establish the defect matrix; using the particle method to solve the defect area product; using the defect matrix expansion method to solve the problem of adjacent defects identification; and then through the feature The method of value array can solve the problem of cutting the defect area from 3D to 2D, so as to fully describe the overall characteristics of bonding quality of engine thermal protection structure parts, and provide a direct basis for bonding quality evaluation.