Recent disasters in Korean society have underscored the severity of the climate crisis, bringing to the an urgent issue requiring immediate reaction. One of the key issues of the climate crisis is climate anxiety. This study aims to understand the climate anxiety experienced by Koreans and its key related factors and contribute to effective countermeasures. This study set climate anxiety as the dependent variable, and life instability(worries about life, life-threatening experience), climate change experience and behavioral engagement as independent variables, controlling for demographic variables. Statistical analysis was conducted using survey data targeting Korean adults. The results showed that climate change experience was a significant variable of exacerbating climate anxiety. Life-threatening experiences also indicated a meaningful association with the increased climate anxiety. Both practical and cognitive behavioral engagement was statistically significant, with practical behavioral engagement associated with a decrease in climate anxiety, while cognitive behavioral engagement was associated with an increase. Among demographic variables, housing tenure type had a marginally significant effect on climate anxiety. This study discussed the implications of these results and policy recommendations.