Background: The future of a nation depends on the success of children in achieving optimal growth and development. Baby massage and exposure to ultraviolet (UV) rays provide enormous benefits for the baby's development both physically and emotionally so that it will gain weight and prevent possible developmental problems in babies. Baby massage and UV exposure are therapies performed by parents that were once popular and are now being developed to improve the degree of health of babies. In order to get more optimal results, it is necessary to use baby oil for baby massage and baby skin care for UV exposure. The purpose of this study is to develop a UBaMa method guide. Methods: The research was research and development (R&D). This research began by identifying the need to conduct literature studies by studying journals and books related to infant massage, UV exposure, and baby growth and development. Compiling guidance on the UBaMa method from the results of development, expert consul continued with revisions and small-scale trials, then evaluated and implemented the UBaMa method. Results: The trial was conducted at the midwives' self-practice in September 2021 on 20 infant mothers and 10 midwives, the UBaMa method guide was declared reliable with a Cronbach Alfa score of 0.954. Content Validity Index (CVI) validity test is conducted on 2 experts and declared valid. Conclusion: The results of the UBaMa method guidance development test were valid and reliable. UBaMa method guidelines can be used by infant mothers and the public and health care institutions.