The invention relates to an automatic processing assembly line of a reverser. The automatic processing assembly line is characterized in that an automatic rotating disc feeding machine, a loading belt line, an abrasive band polishing mechanism, a steel wire wheel polishing mechanism, an electric cylinder lifting and translating material-taking mechanism, a reaming mechanism, an inner hole detection mechanism, a linear array camera locating mechanism, a pre-hooking mechanism, a final hooking mechanism, a secondary steel wire wheel polishing mechanism, a camera detecting and locating mechanism, a pressure resistant testing mechanism, a long belt line and an automatic tray loader are arranged on a working table; and the mechanisms are sequentially arranged on a table board in a U shape from front to back, a material is loaded from a loading rotary disc firstly, is subjected to abrasive belt polishing, primary steel wire wheel polishing, reaming, inner hole detection, hooking, secondary steel wire wheel polishing and pressure resistant testing, then is conveyed to the automatic tray loader by the long belt line for tray loading, the whole process only requires two workers, one worker performs loading in the rotating disc position, the other worker performs material receiving in the automatic tray loader position, and the operation is simple and reliable.