Ensuring food security is a fundamental pillar for economic development, social stability, and national security. However, the world is currently facing mounting food security challenges, with approximately 258 million people across 58 countries and regions affected by acute food insecurity in 2022, according to the Global Food Crisis Report. Climate change, particularly extreme weather events such as high temperatures, droughts, and floods, is a major contributing factor. It disrupts agricultural production, reduces crop quality, affects pricing and distribution, alters food trade patterns, damages infrastructure, and poses serious threats to global food systems. Against this background, the project takes Southeast Asia, a region characterized by ecological vulnerability, as its object of study to 1) assess extreme climate risk and food security, 2) conduct an in-depth analysis of the impacts of extreme climate change on food security, and 3) propose targeted adaptation countermeasures. While at CSEAS, I will be working on a manuscript examining the impact of extreme climate change, including high temperatures, droughts, and floods, on food security in Southeast Asian countries. Building on my previous research experience in Central Asia and China, the manuscript will also provide context-specific adaptation strategies to help Southeast Asia respond to climate challenges and enhance food security in the long term.