The importance of green consumerism for human beings’ sustainability is emerging rapidly. This study was conducted to suggest useful criteria for improvement of environmental performance of products and green marketing via understanding the meaning of environmentally friendly products and identifying environmental attributes of products. From 6 literature review, we found three essential particulars of environmentally friendly products, such as relative concept, considering life-cycle of products, and providing values for society and consumers. We also identified 23 environmental attributes from 17 literature review. The attributes were classified based on life-cycle stages and analyzed to check frequency and trends. Finally, they were classified based on three quality dimensions, such as performances, features, longevity, suggested by Garvin(1984) as product based dimensions. From this classification, we suggested three directions of environmentally friendly products as follows. First direction of them is products that have performances influencing positive impact on environment, second one is products that have features reducing environmental burden, and the last is products that can be used long. Identifying and applying trends and quality relation of environmental attributes should be implemented for successful green marketing. Development of environmentally friendly products can be easier by considering various attributes and finding niche. To reduce real environmental burden and prevent green washing, assessment standards for environmentally friendly products should be applied overall environmental impacts considered trade off.