ABSTRAK LatarBelakang: MakananPendamping Air Susu Ibu (MP-ASI) merupakanmakanantambahan yang diberikankepadabayisetelahusiaenambulan. Cakupan ASI Eksklusif yang rendah di Puskesmas III Denpasar Utara dapatmenjadi salah satupenyebabtingginyapemberian MP-ASI dini. TujuanPenelitianiniadalahuntukmengetahuifaktor – faktorterkaitpemberian MP-ASI dini pada bayi. Metode: Desainpenelitian yang digunakanadalahcross sectional. Populasiyaitusemuaibu yang memilikibayiberusia 4-12 bulan yang berkunjungkeUPTD Puskesmas III DinasKesehatanKecamatan Denpasar UtaraJumlahsampelpenelitianiniadalah78 respondendenganmenggunakantekniknon probability samplingyaituaccidental sampling. Instrumen yang digunakanadalahkuesioner. Analisa data yang digunakanyaitudeskriptifkuantitatif. Hasil: Dari 78 responden 100% respondensudahdiberikan MP-ASI dini. Sebanyak 52,6% memilikipengetahuan yang kurangmengenaipemberian MP-ASI dini pada bayi, sebagianbesarrespondenmasihdipengaruhi oleh sosialbudayayaitu 55,1%, sebagianbesarrespondentidakmendapatkandukungankeluargasebesar 67,9%, sebagianbesarrespondenmendapatkansumberinformasimelaluisosial media sebesar 37,2%. Kesimpulan:Pemberian MP-ASI dinidisebabkan oleh tingkatpengetahuan yang kurang, dipengaruhi oleh sosialbudaya, tidakmendapatkandukungankeluarga dan sumberinformasi yang salah. Diharapkanbagiibumenambahpengetahuantentangpemberian MP-ASI yang tepatwaktu,tekstur dan nutrisi Kata Kunci: MP-ASI Dini, Pengetahuan, SosialBudaya, DukunganKeluarga, SumberInformasi,

ABSTRACT Background: Complimentary feeding is an additional food given to the babies after six months. The low coverage of exclusive breast feeding at Public Health Center III North Denpasar is the cause of high rate of early complimentary feeding. Purpose: To identify the factors on early complimentary feeding on babies. Method: This study employed cross sectional approach. The population of this study was mothers with their babies aged 4-12 months who visited public Health Center III North Denpasar. There were 78 respondents recruited as the samples which were chosen by using non probability sampling technique with accidental sampling. The instrument used was questionnaire. The data were analyzed by using descriptive quantitative. Findings: The result showed that 100% respondents had been given early complementary feeding. There were 52.6% respondents had less knowledge about early complimentary feeding, most of the respondents were influenced by social culture factors 55.1%, most of the respondents were influenced by family support 67.9%, and most of the respondents got the information from the social media 37,2%. Conclusion: Early complimentary feeding was influenced by less knowledge level, social culture, family support, and source of information. It is expected that mothers can improve their knowledge about complimentary feeding such as timing, texture, and nutrition. Keywords: Early Complimentary Feeding, Knowledge, Social Culture, Family Support, Source of Information