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This study aimed to develop a project-based learning (PjBL) teaching module to enhance children's social skills and provide a structured guide for teachers in implementing learning processes. Conducted at Handayani Kindergarten Makassar, the research involved teachers, students, and parents, prompted by initial observations highlighting the need for such a module. The study followed a development research approach using the ADDIE model (Analysis, Design, Development, Implementation, Evaluation) for systematic module creation. Data collection methods included questionnaires, interviews, and observations, utilizing validation sheets, teacher and parent feedback forms, and observational data as instruments. A mixed-methods approach (qualitative and quantitative) was employed, combining interview insights with analyzed questionnaire and observation data. Findings indicated that the PjBL module effectively met teachers' needs for systematic and interactive teaching tools, facilitating structured learning implementation. The module's quality was validated with a score of 3.7 for validity, 3.5 for practicality, and an N-Gain test result of 0.8, indicating a high-category improvement in children's social skills. Furthermore, trial results demonstrated its effectiveness, scoring 3.4, confirming the module’s suitability for enhancing social skills at Handayani Kindergarten.