The invention relates to a full-automatic clamping device of a detection testing machine for an automatic clutch cover assembly, belongs to the field of automobile component detection, and specifically relates to automatic detection of automobile parts. The invention provides a device which can convert a manual-operated detection testing machine for the automobile clutch cover assembly into the full-automatic detection testing machine for the automobile clutch cover assembly, the problem that no full-automatic detection testing machine for the automobile clutch cover assembly can be applied to a full-automatic cover assembly production line is solved by fully using the method of an original detection testing machine for the cover assembly, and full-automatic loading and unloading of workpieces and full-automatic placing and unloading of to-be-separated bearings and locking nuts are realized.