Latar Belakang : Pijat Baduta telah terbukti dalam berbagai penelitian memiliki segudang manfaat untuk tumbuh kembang bayi. Angka kesakitan pada anak umur 0 - 4 tahun di Indonesia pada tahun 2023 adalah sebesar 13,11%, dan di Propinsi Bali sendiri tercatat sebesar 35,44% (Statistik, 2023). Pijat Baduta ini dapat dijadikan salah satu metode untuk membantu meningkatkan daya tahan tubuh sehingga dapat mengurangi angka kesakitan pada anak (Krisnanto et al., 2019). Pada kenyataannya di UPTD Puskesmas IV Dinas Kesehatan Kecamatan Denpasar Selatan pelaksanaan pijat Baduta masih minim keikutsertaannya. Pesatnya kemajuan teknologi di bidang media audio visual diharapkan dapat meningkatkan pengetahuan dan perilaku orang tua dalam pelaksanaan pijat Baduta mandiri. Tujuan: Untuk mengetahui efektivitas penggunaan media audio visual terhadap pengetahuan dan perilaku orang tua pada pelaksanaan pijat Baduta mandiri. Metode: Penelitian menggunakan rancangan pra eksperimental dengan The One Group Pre-test Post-test Design. Penelitian dilakukan di UPTD Puskesmas IV Dinas Kesehatan Kecamatan Denpasar Selatan pada bulan April sampai Mei 2025. Sampel penelitian adalah orang tua Baduta yang berkunjung dan berdomisili di wilayah kerja Puskesmas. Pengambilan sampel menggunakan metode non-probability sampling dengan teknik consecutive sampling. Dilakukan dengan pemberian kuesioner pre-test, dilanjutkan dengan pemberian intervensi berupa video dan pelaksanaan post-test, yaitu 2 minggu pasca intervensi. Analisa data menggunakan uji statistik Wilcoxon Signed Ranks Test, karena dari uji normalitas, data tidak terdistribusi normal. Hasil:Sebelum intervensi pengetahuan orangtua mayoritas berkategori kurang (82,5%), sementara setelah intervensi didapatkan hasil mayoritas pengetahuannya kategori baik (70,2%). Untuk perilaku didapatkan mayoritas kategorinya adalah cukup (63,2%) dan setelah intervensi menjadi kategori baik (82,5%). Hasil Uji Wilcoxon Signed Ranks Test menghasilkan p-value = 0.000. Simpulan dan Saran:Terdapat peningkatan pengetahuan dan perilaku orang tua Baduta setelah intervensi dan pemberian intervensi media audio visual adalah efektif dalam peningkatan pengetahuan dan perilaku orangtua Baduta (p-value

Background: Massage for children under two years has been proven in many studies to give advantages the children growth and development. In 2023, the morbidity rate among children aged 0–4 years in Indonesia was 13.11%, while in Bali was recorded at 35.44% (Statistics, 2023). Massage for children under two years can serve as one method to strengthen the immune system, therefore it reduces morbidity in children (Krisnanto et al., 2019). In fact, massage of children under two years which was done in the Public Health Center IV South Denpasar remains low. The development of audiovisual technology is expected to improve parents’ knowledge and behaviour in independently practicing the massage. Purpose : To determine the effectiveness of the use audio visual media on parents’ knowledge and behavior toward massage for children under two years. Method: This research employed pre-experimental One Group Pre-test Post-test Design. This research was conducted in the working area of Public Health Center IV South Denpasar in April to May 2025. The samples of this research were parents who visit and live in the working area of Public Health Center. The samples were chosen by using nonprobability sampling method with consecutive sampling technique. It was done by giving pre-test, followed by intervention through video. The post-test was done two weeks after the intervention. The data were analysed by using Wilcoxon Signed Ranks Test since the data were not normally distributed. Findings: The result showed that before intervention, most of the parents (82.5%) had poor knowledge, after intervention most of the parents (70.2%) had good knowledge. For the behavior before intervention, most of parents (63.2%) had sufficient behavior, after intervention most of parents (82.5%) had good behavior. The result of Wilcoxon Signed Ranks Test showed p-value = 0.000. Conclusion: After the intervention, knowledge and behaviour of parents of children under two years are improved. The intervention of audiovisual media is effective in improve their knowledge and behaviour (p-value < 0.05). It is expected that the use of audiovisual media can be an effective educational and intervention program to make parents confidently perform infant massage independently. Keywords: Audio Visual, Massage for Children under Two Years