In this study, eco-friendly environmental concept in PLA (poly lactic acid) geosynthetics application was reviewed and concept of green geosynthetics as a sustainable material was introduced in terms of biodegradability. Development of green geosynthetics, its background and technical concerns were discussed through some research results of PLA (polylactic acid) specimens. Test method for biodegradability of PLA as a green geosynthetics were considered and suggested based on composting method. Finally, the rest result shows that the concept of biodegradability for green geosynthetics is available in the environmental application. PLA 4032D/PBAT (80/20) blend shows improvement of environmental performance as a green geosynthetics application than PLA 4032D only used.