Indonesia is a maritime country with the largest islands in the world covering more than seventeen thousands islands. This wealth should be wisely explored for all their advantages. Also, all parties should take responsibility to inherit values embedded in the wealth. This study is a Research and Development focusing at developing English worksheet materials in the theme of Maritime Thematic Expressions. Specifically, it aimed at identifying initial contents of the English worksheet, describing the development of worksheet materials and justifying contents of worksheet materials in facilitating the students’ needs in reading English materials. The flow of this R&D refers to Sugiono’s model that includes analyzing data, collecting data, designing materials, validating material, revising the material, piloting products, revising the material, piloting materials, revising the material and material development. The development of this material adjusted to the needs of syllabus and national strategic issues in maritime that were coined with students of Junior High School Terbuka Pekanbaru. The worsksheet development has been revised and validated by some experts of curriculum and linguistics. This material has also been piloted by the English teacher to determine of the students’ ability in comprehending the materials. Based on the results of this development, it can be concluded that the materials development were relevant with the standard competence and basic competence in syllabus of the students’ reading skill in Junior High School Terbuka Pekanbaru.