The judicial system in the Qajar era is the history of a nation that was formed within the framework of certain cultural conditions and political structures, laws that reflect the traditions, customs, rituals and ceremonies and set of values ​​of that nation. And due to the lack of codified laws, it had many shortcomings due to the royal tyranny and the spirit of secrecy, the spirit of anti-regulation and self-centeredness, relationalism, and irrationality in decision-making. In the present study, while dealing with the Iranian judicial system from the perspective of European travel writers, the issue of whether the reform of the judicial system was a function of change in the legal structure or the political and social structure of society with the constitutional movement aimed at limiting the monarchy and its axis The establishment of the rule of law, which has always played an important and key role in the transformation or progress or underdevelopment of societies, was the most fundamental and unsuccessful event in creating a fundamental change in the administrative and executive structure of the country. In this research, an attempt has been made to use the method of analyzing the content of sources and references of this period while presenting the description of the characteristics of the judicial system of the Qajar period in European travelogues of its inadequacies, inadequacies, structural anomalies. To reform this system, the causes and factors of the failure of these efforts to recognize the roots of the continuation of the heterogeneous.