This is an automatic assembly inspection line with comprehensive technology and compact design. The feeding, oiling and assembly of parts such as base, circuit board, conductive rubber, pressing block, shell, sheet ejector rod and upper cover assembly are automatically completed by automatic execution units such as robots. The material flow between stations is realized by flexible conveying lines, assisted by automatic cleaning, CCD visual automatic detection, electrical performance test, labeling, offline and full-range two-dimensional code tracing.