CLIMATE is a general condition of the prevailing weather conditions of a given location based on long-term statistics. The climatic conditions of each site play an important role in the dispersal of humans , animals and plants , so any activity or planning in the various economic , agricultural and industrial contexts at the ground is not possible without knowledge of the CLIMATE. For this reason , climatic division or recognition of climatic zones is essential in land use planning. The purpose of the present study is to predict CLIMATE change in Zayandehrood watershed based on IPCC scenarios and Kö ppen-Geiger CLIMATE CLASSIFICATION. In this study , the simulated monthly total precipitation of the Global Precipitation Climatology Centre (GPCC) and mean monthly temperature of the Climatic Research Unit (CRU) data of TYNSC2. 03 in the 21st century (2100-2001) were used. For this purpose , Zayandehrood watershed was divided into a network with dimensions of 45 * 55 km in each cell. The results of scenarios defined A1F1 , A2 , B1 and B2 indicate that the conditions of Zayandehrood watershed will lead to warming and desertification and the intensity of these changes is more evident at the upstream and downstream of the watershed. The results show that in all scenarios and time frames , pixel 8 will have the most changes. So at the upstream areas where there are more snow conditions , there will be severe CLIMATE change. Considering to the anticipated conditions , mitigating measures , including reducing greenhouse gas emissions , upgrading and deploying clean technologies and protecting forests against CLIMATE change , are essential.