It is important to identify and discuss what the most vial contributions of criminological
theories. In the field of criminology, most significant contributions or advancement have
been made on the various issues such as age, the integration of structural and procedural
level theories, other theoretical integration debates. However, it is hard to find ant systematic
study exploring such a contribution in criminological theories. This study, therefore, has a
purpose to discuss three most significant contributions to our theoretical understanding of
criminal behavior made since 1985. To accomplish the study purpose, this study choose the
followed three theoretical contributions; the emergence of life course theory, the revision
of social disorganization theory, and the introduction of social structure and social Learning
(SSSL) model. The three theoretical works will be introduced and discussed regarding other
theoretical integration trends in the body of this study. The conclusion, contribution of this
current study has been discussed in the last conclusion and discussion section.