Abstarct:   The main goal of this research is to "investigate changes in the production of agricultural sectors due to climate change". This research is applied in terms of purpose, quantitative in nature and descxriptive in terms of data. The research method was carried out simultaneously in the library and in the field. The research tools were collected in the library department in the form of taking notes and taking notes from various texts, including books, articles indexed in the banks of publications and magazines, and archives of national and international conferences. In the field part, the data is taken from global databaxses and its analysis was done in SPSS and Eviews software with the OLS sum of squares method. The conceptual model used in this study includes the risk triangle model, which defines the severity and frequency of risk, exposure to risk, and vulnerability, and each of these variables is one of the sides of the triangle. In this study, panel data regression is used for Razavi Khorasan province and the years 2015 to 2021. Also, piecewise multivariate. regression model with risk triangle model approach is used. The results showed that due to climate change, agricultural production will decrease in the areas of Razavi Khorasan in the period of 2015-2021. According to the mutual relations between the economic sectors and the agricultural sector, this effect has been estimated as a decrease in production. Also, the effect of climate change on the intensity and frequency of risk has been estimated with a significant level of 0.14, exposure to risk 0.21 and vulnerability 0.04, which is significant.