介绍了金属与非金属筒形件搭接粘接的一种超声在线检测技术，它能在微机光屏上实时地显示被检测构件沿圆周方向上粘合面积的彩色图象，并对构件整体粘接强度合格与否作出预报。工程实践表明，该技术在保证不将粘接强度不合格的构件误报为合格的前提下，在粘接强度不合格构件为5％左右时，给出的粘接强度合格与否的误报率不大于0.5%。 An ultrasonic on-line inspection technique for lap bonding between metal and non-metal cylindrical parts is introduced. It can display the color image of the bonding area along the circumferential direction on the microcomputer light screen in real time, Adhesion strength is qualified or not to make a prediction. Engineering practice shows that the technology is not false in the bond strength of the components failed to pass the precondition, in the bonding strength of unqualified members of about 5%, given the bonding strength of false positive or not Rate of not more than 0.5%.