The aim of this research is to describe the results of the development of Augmented Reality Based Ethnomathematics Student Worksheets (LKPD). This research is motivated by a problem being faced by 5th grade teachers at Islamic Global School Malang Elementary School, namely the absence of interactive learning media to support students' abilities, so that students tend to find it difficult to understand geometric material. This type of research is R&D Research and Development using the 4D research method, namely define, design (planning), develop, disseminate, but the research only reaches the development stage. The population used in this research was 20 grade 5 students at SD Islamic Global School Malang. The sampling technique is a purposive sampling technique. The test subjects were divided into two, namely expert trials and student response trials. The subject of expert testing was carried out by 3 mathematics education lecturers at Insan Budi Utomo University Malang and 1 class teacher at SD Islamic Global School Malang. The sample method used was purposive sampling. Purposive sampling was used because of several criteria. Namely, students received material based on the curriculum, LKPD, and the same class facilities were used and taught by the same teacher. The samples were 5th grade students and teachers at Islamic Global School Malang Elementary School. Data collection techniques use observation and questionnaires. The data analysis technique in this LKPD development research is a Likert scale using 2 types of data, namely qualitative data and quantitative data. Qualitative data was obtained from interviews at the defined stage and qualitative data was obtained from expert assessment questionnaires and student response questionnaires. Based on the results of the research and discussion, it can be concluded that the development of Augmented Reality-based Ethnomathematics Student Worksheets (LKPD) can be used in learning. This is based on the results of expert validation by obtaining a percentage of 96.33%, with a percentage of 100% for the suitability of the indicator, a percentage of 95% for the augmented reality indicator, a percentage of 88% for the language suitability indicator, a percentage of 100% for the interest indicator display, 100% percentage on material suitability indicators, and 95% percentage on ethnomathematics indicators.