Introduction:  Assessment and measurement of anger have been an interesting subject for experts in psychological and social sciences and have been done in varied forms especially in three different populations of ordinary, clinical, and military clusters.
Method:  In  the  present  systematic  review,  keywords  include  “anger  assessment,  anger measurement, anger assessment instruments, standardization of anger assessment instruments, standardization  of  anger  measurement  instruments,  and  anger  test”.  These  keywords  were searched in “PubMed, ScienceDirect, Google Scholar, Google Patent, MagIran, SID, Proquest, Ebsco, Springer, IEEE, Kolwer, & IranDoc” search engines. According to the relation between the  study  sections,  academic  publishing,  publishing  after  2000  and  Jadad  system  relevant sources were selected. The manuscripts were then finalized by the evaluation of five experts in anger domain via the Delphi method.
Results:  According to analyses of ordinary, clinical, and military populations, four specific and three general-purpose instruments of anger assessment have been found which have at least more than three studies of standardization and validation.
Conclusion: According to the study findings, it is proposed to validate, and standardize NASPI in different populations in order to anger assessment and investigation in healthy and nonclinical, clinical and pathological, as well as military populations. The lack of biological and physiological anger assessment instruments is discussed as well.