The purpose of this study was to identify the factors affecting the destruction and seizure of land in Hamadan province. Being mountainous, shortage of residential land and the willingness of citizens to build garden villas in mountainous slopes, which are mainly part of rangeland and national lands, social and cultural conditions, lack of national land registration, failure to restrain criminal laws related to the destruction and seizure of national lands, lack of supervision over the assignment of national land and lack of credits and facilities for national land protection units, among the factors has an impact on the destruction and seizure of national lands in Hamadan province. The statistical population of this research includes the staff of the judiciary and natural resources of Hamadan province according to available statistics, there are 700 people in these organizations. In this research, a researcher-made questionnaire was used to collect data. After preparing the questionnaire, according to the sample size, 248 people were selected based on the sample size table for Kerch and Morgan. To the number of samples, a distributed questionnaire was distributed among the statistical sample. The method of this research is descriptive-survey.The results showed that: There is a relationship between the inability to restrain criminal laws, the lack of implementation of the national landmarks, the lack of supervision over the assignment of national land, the lack of credits and facilities of national land conservation units on the process of demolition and seizure of land in Hamadan province. In this study, SPSS software version 25 was used at the error level of 0.05.
