Fear of crime is an integral part of modern life and one of the widespread seizures in current world. This study is a meta-analysis study aims to assess factors affecting the fear of crime in Iranian research studies. For this purpose, articles that have been published in Iran in the field of  fear of crime were studied, and after eliminating review and library studies, 20 research papers were selected as the statistical population. Using Fisher formula in CMA2 software, standard effect sizes of the studies were calculated and then combined. The findings suggest that interactions and social links with the effect of -0.566, perception of environmental quality with the effect size of 0.305, satisfaction with the police with the effect size of -0.234, are the most important factors affecting the fear of crime in the selected research studies.