This research investigates the impact of various dimensions of green finance on the environmental performance of SMEs, focusing on selected manufacturing SMEs in Lagos, Nigeria. Two hundred and fifty surveys were distributed to the designated participants, resulting in the successful collection of 235 completed questionnaires. The data analysis utilized both the Pearson Product Moment Correlation Coefficient (PPMCC) and Path Analysis-Structural Equation Modeling (PA-SEM). The findings indicate a positive association between green investment and green training with SME environmental performance, although the correlation is not statistically significant. This suggests that while green investment and training show potential for enhancing SMEs' environmental performance, further exploration is needed. Conversely, the study confirms a positive and significant relationship between green loans, green technology, and SME environmental performance, highlighting the effectiveness of green loans and technology in promoting environmental responsibility among SMEs. In light of these results, it is recommended that governmental bodies, financial institutions, and other stakeholders provide financial incentives and support to SMEs for the adoption of green technology and green loans. Additionally, a collaborative effort is encouraged to actively promote green training initiatives for SME employees. This collective approach aims to cultivate a sustainable and environmentally conscious business environment, aligning with the overarching objectives of environmental sustainability.