ABSTRACT The low level of students’ interest and literacy skills in elementary schools remains a crucial issue in Indonesian language learning. This study aims to examine the impact of the “Cinta Bahasa Indonesia” (Love for the Indonesian Language) program on improving the learning motivation and literacy skills of fifth-grade students at MI NWDI Reban Tebu. The research employed a quantitative approach using a one-group pretest–posttest design. The participants were 24 students from class VB who took part in a collaborative literacy activity conducted by teachers and teaching assistant program students over a four-week period. Data were collected through literacy skill tests covering reading and writing aspects and learning interest questionnaires administered before and after the program. The results revealed a significant improvement in students’ literacy skills, with the average score increasing from 67.5 to 85.3, and learning interest rising by approximately 24%. The statistical analysis showed a p-value < 0.05, indicating a significant difference between the pretest and posttest results. These findings demonstrate that the “Cinta Bahasa Indonesia” program effectively enhances students’ literacy and learning motivation through interactive, participatory, and enjoyable learning experiences. Furthermore, the program fosters students’ appreciation for Bahasa Indonesia as the language of national identity. Therefore, it is recommended that such initiatives be implemented continuously in elementary schools to strengthen early literacy culture. Keywords: Cinta Bahasa Indonesia, basic literacy, learning interest, Indonesian language, elementary school.