CONTEXT Climate change poses significant challenges to agricultural productivity, crop yield and overall resilience of farming system, particularly in mountainous regions. In a mountainous coutry like Nepal, where agriculture is a crucial livelihood for a substantial population, the Climate Resilient Agricultural (CRA) solutions are imperative. These solutions aim to enhance the sustainability of water, reduce reliance on pesticides and chemical fertilizers, and increase farm productivity and income. However, understanding the factors influencing farmers' decisions to adopt or reject such solutions remains a critical knowledge gap. OBJECTIVES This study investigates the socio-psychological and socio-demographic determinants affecting the adoption of climate-resilient agricultural solutions. METHODS This study uses the theory of planned behavior and a mixed-method approach to conduct household surveys with farmers, Key Informant Interviews with experts and implementing partners, and Focus Group Discussions with farmers' groups. Responses to behavior-related questions were analyzed using Partial Least Square Structural Equation Modeling (PLS-SEM), and the factors influencing the farmers' adoption behavior were identified using binary logistic regression. RESULTS AND CONCLUSIONS The result based on a limited sample size indicates that farm characteristics and farmers' perceived behavior control significantly influence the adoption and continuation behavior of CRA solutions. In conclusion, fostering awareness, capacity building, and skill development and establishing both market and non-market incentives are essential for improving the adoption of new solutions for climate resilience in agriculture, however, the in-depth research is recommended to better understand the adoption behavior within specific farming systems. SIGNIFICANCE The findings of this research offer valuable insights for policymakers and development practitioners striving to promote the widespread adoption of CRA solutions in farming communities. It will help to develop targeted strategies and policies that effectively support the integration of these solutions into agricultural practices, ultimately enhancing the resilience of the farming system in the face of climate change.