The purpose of this research is to analyze students and teachers needs analysis of the product, to explain product design, and to explain the effectiveness of the product. The research and development (R&D) method was used in this study, which aims to develop new products or improve existing products. Then the R&D model chosen in this study is the ADDIE development that developed by Dick and Carry which consists of five stages, namely Analysis, Design, Development, Implementation, and Evaluation. The participants research were 31 students in the 10th grade of SMA N 8 Semarang. The results of this study indicated that: first, 31 students need interactive and fun material models for learning. 1 english teacher feels that need for alternative learning material models. Second, A model of reading comprehension materials on multimodal descriptive text-based Google Site for Senior High School students. Third, the effectiveness test of the products developed shows effective and can improve students’ reading comprehension skills. Thus, a model of reading comprehension materials on multimodal descriptive text-based Google Site can be used as a recommendation for model material used in class to improve students’ reading comprehension skills. Expected to become information for other researcher, so that they can develop a better Google Site-based learning material model.