In this paper the concepts of theoretical psychology and history of psychology are examined. With regard to the former, a case is made for the Koch-Bergmann-Madsen conception of theoretical psychology as metapsychology. It is further argued that theoretical psychology as theory-construction may also be seen as metapsychology. Next, history of psychology is scrutinized. Two main approaches to the field will be dealt with: (1) the social-historical, and (2) the intellectual-historical (intellectual history, Problemgeschichte). It is held that from a systematic point of view the intellectual-historical approach has the advantage over social history that it may have a direct bearing on the discipline. Finally, it is contended that for this reason the link between theoretical psychology and intellectual/problem history is likely to be fragile. So fragile indeed, that the latter may be seen as forming part of theoretical psychology.