Seen from the perspective of the human and social nature of activity, every evaluation can be said to be a social evaluation, which is evaluation in a broad sense. But seen from the diversified specific evaluations as well as their subjective forms, the actual evaluations can be classified in a narrower sense, into social evaluations, individual evaluations, group evaluations, human-history evaluations, etc. The levels in social evaluations and the relations between different evaluations are one of the keys and difficulties in the investigation of the problems of evaluations.