Whereas police provides physical, financial, mental and social security of tourists, it plays a very significant role in attracting more foreign tourists. The present research aims at recognizing role of police in expanding tourism industry and the impact of providing services and physical presence of police on increasing the number of foreign tourists in tourism attractions in Isfahan city. The research is of descriptive-analytical and correlative type. The under survey statistical population includes foreign tourists who visited Isfahan in 2010. 320 tourists selected as sample statistical population through using Cockran method and a self-made questionnaire, and collected foreign tourists' views in relation with security. Chief among the results of the research, one can refer to level of satisfaction of foreign tourists with security in Isfahan city.However, the level of satisfaction with police in terms of providing information, supervision over performance of hotels, restaurants and travel agencies, as well as their visible presence in some tourism centers was so low.Nevertheless, with respect to the security conditions in Isfahan city, many foreign tourists have been eager to travel to the city again, and/or recommend their friends and acquaintances to visit the city. Reviewing the hypotheses of research indicates that there is a significant re-lationship between the variables. In addition, the hypotheses which have dealt with assessment of the relationship between the variables are also confirmed. However, there is no significant relation between excessive physical presence of police in tourism attraction sites and mental security feeling level among foreign tourists. Therefore, the above-mentioned hypothesis is not confirmed