Environmental characteristics in coastal areas are receiving less attention, especially for science education development. However, it provides relevant learning objectives, such as the presence of seagrass and marine aquaculture. This study aims to develop environmental-based student worksheet using seagrass context to improve students' scientific literacy. The method employed in this research is a quasi-experimental. Data was collected using instrument test and observation sheet. Data was

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... ysed using descriptive statistical analysis technique. The results showed that the worksheet contained seagrass ecology approach were theoretically valid according to the judgement expert with the average value A (very good). The synthesis of student worksheets contained seagrass and marine aquaculture's ecological value also found can significantly increase students' scientific literacy. This results suggest that integrating local natural resources into teaching and learning process in the form of student worksheet strengthens students' literacy and sensitivity to the coastal areas of East Lombok and global environmental issues.