The substantial rise in the frequency of extreme weather events in recent years affecting agricultural production systems and causing staple food grain availability at the national and regional levels. Several floods and droughts are being experienced frequently in Southeast Asia (SEA) region posturing severe problems to farmers, agricultural scientists and extension officers. Therefore, the cropclimate modelling is essential to the development of agricultural production systems and field level decisions. The Decision Support System for Agrotechnology Transfer (DSSAT) can be used as a farm and regional level to determine the impact of climate change on production, at different spatial scales; and potential adaptation strategies developed for the farmers. The main goals of this project are: I) To provide hands-on practical exercise on the proper use and applications of DSSAT and it is associated crop simulation models to solve actual problems. II) Identifying appropriate promising technologies and to develop adequate strategies to make agricultural production systems profitable, sustainable and resilient through crop simulation methods. III) Evaluating integrated assessments, analysing farm production using DSSAT tools to very inputs and simulate productivity IV) Strengthening technical and scientific abilities by enhancing collaboration between National Agricultural Research System (NARS), policymakers, and local communities with International organizations.