Ethics from the point of view of sociology is one of the foundations of social order. But now such an order has been threatened in various societies. This situation is referred to as an "ethical crisis". From the perspective of this research, Iranian society is in such a critical situation. This issue has been examined based on the anomie theory.
The population of the research is Tehran citizens aged 18 years and over in 2017. A sample of 400 people from this population is selected by multi-stage cluster sampling. The research method was survey and data was collected using questionnaires and secondary statistical data.
The objective and statistical findings and the subjective judgments of the respondents indicate an ethical crisis. The variables of perceived inequality, dissatisfaction, perceived weakness in social controls and individualism together explain 70% of the changes in ethical crisis.