This study aims to create and develop mangrove eco-literacy storytelling as learning media for coastal children at SDN Lontar 2 – Serang which is used to support the implementation of environmental education on mangrove ecosystems. This study used to research and development method of Borg and Gall (2008) which includes identification stage, goal formulation, material formulation, the instrument to measure, media scriptwriting, feasibility testing and trials, and revision learning media. The results of this study are learning media for the mangrove eco-literacy storytelling which has been through feasibility testing and field trials. Based on the appropriateness test obtained the results of the percentage of material feasibility 75% with a good category, the percentage of media feasibility reached 86.36% with a very good category and the percentage of feasibility for learning was 88.67% with a very good category. Field trials showed that there was a significant effect with the pretest and post-test values ​​of 57.56 < 73.57. Based on calculations using the t-test was obtained a high significance value of 0.02 < p = 0.05 so that H0 was rejected, and Ha was accepted which means that users of mangrove eco-literacy storytelling influences to increase of mangrove eco-literacy students at SDN Lontar 2 - Serang. Conclusions from this research, Eco-literacy of mangrove storytelling media is very feasible to use for the learning process and mangrove eco-literacy storytelling is proven to be able to improve the ability of eco-literacy mangroves of students in environmental theme learning at SDN Lontar 2 - Serang.