In Liberia, a country where agriculture plays a pivotal role in socio-economic development and food security, the effectiveness of agricultural extension services remains crucial yet underexplored, especially in the context of transitioning from subsistence to commercial agriculture. This study focuses on assessing the Central Agricultural Research Institute's (CARI) agricultural extension services' impact on the agricultural productivity and livelihoods of farmers in Suakoko, Jorquelleh, and Yealliquelleh districts of Bong County, from 2013 to 2017. The objectives were to evaluate the accessibility and adoption of agricultural innovations disseminated by CARI and analyze the effectiveness of its extension delivery methods. Employing a mixed-methods approach, the research yielded significant findings: 54.1% of respondents were male, indicating a gender disparity in agricultural engagement. The adoption of new technologies and practices was varied, with 43.3% of farmers reporting access to new fertilizer application methods as the most prominent innovation provided by CARI. Despite the extension efforts, 68.8% of farmers did not receive visits from CARI agents, and a considerable 50% reported no access to new innovations or technologies. The study also highlighted a distinct preference for learning through demonstrations (73.7%) and meetings (25%), underscoring the demand for practical and interactive extension services.