Most countries around the world seek to add their historical city centres to the list of World Heritage sites to make them attractive centres for tourism by focusing on studies and projects that attract new events to meet the requirements of tourists to benefit from the financial return. On the other hand, the indigenous people in these centres suffer from a change in their normal lifestyle as a result of their transformation into tourist environments and uninhabitable places, and consequently, these centres lost a large part of their attractiveness and social identity, Hence the research problem, represented by: the loss of the historical centres of their vitality and social spirit as a result of the migration of its original inhabitants and they are leaving their homes. Accordingly, the aim of this research was determined to reach the most important indicators of urban tourism that negatively affect the quality of life of the indigenous population. The Social, economic, environmental, cultural and urban impact on the lives of indigenous peoples, For the purpose of achieving the goal of the research, previous studies were reviewed that dealt with the relationship between urban tourism and the indigenous population in the centers of historical cities and to reach the most important influential tourism indicators, which were represented by social, economic, environmental, cultural and urban indicators as main indicators and a set of sub-indicators that involve them, and the application of these indicators to the city of Najaf The old city by conducting interviews with residents and making field visits to the city, and relying on some studies of the city, The most important results were that the following indicators: (weak social relations, changing traditional ways of life, difficulty in obtaining daily needs, high land and real estate prices, pressure on infrastructure services, loss of heritage and historical buildings and lack of services and spaces allocated to the population) the influential role in the migration of the population The original inhabitants of the old city of Najaf.