This study was designed to provide practical environmental marketing data by measuring the effect of environmental marketing on customer loyalty and trust at coffee stores. The results were obtained by empirical analysis and are summarized as follows. The first hypothesis, the effect of environmental marketing on consumer trust at coffee stores, showed that environmental marketing at coffee stores had a statistically significant positive effect on consumer trust. Price, product, and facilities as sub-factors of environmental marketing at coffee stores had effects on consumer trust. Especially, facilities was the highest. The second hypothesis, the effect of environmental marketing on customer loyalty at coffee stores, showed that environmental marketing at coffee stores had a statistically significant positive effect on customer loyalty. Price, product, and facilities as sub-factors of environmental marketing at coffee stores had effects on customer loyalty. Especially, facilities was the highest. The third hypothesis, the effect of consumer trust on customer loyalty at coffee stores, showed that consumer trust at coffee stores had a statistically significant positive effect on customer loyalty. Improvement of consumer trust by environmental marketing was an important factor in improving customer loyalty. As for these findings, price, product, and facilities as sub-factors of environmental marketing at coffee stores had effects on consumer trust and loyalty. Consequently, these findings provide helpful information for coffee stores to plan environmental marketing strategies and establish direction, and they can be used for management activities.