Latar Belakang: Pemberian MP-ASI yang tepat dan sesuai dengan kebutuhan gizi anak dapat melindungi anak dari berbagai macam penyakit. Diare menjadi salah satu masalah kesehatan di Indonesia terutama pada anak. Beberapa penelitian terdahulu menunjukkan adanya hubungan antara pemberian MP-ASI yang tidak tepat dengan kejadian diare akut pada anak. Puskesmas Bojong Nangka, Kabupaten Tangerang merupakan salah satu Puskesmas yang merawat pasien anak dengan diare tetapi belum ada data mengenai pemberian MP-ASI pada pasien tersebut. / Background: Proper complimentary food administration, in accordance with children's nutritional needs, could protect children from various diseases. Diarrhea was one of the health problems in Indonesia, especially in children. Several previous studies had shown a relationship between inappropriate complementary food and the incidence of acute diarrhea in children. The Bojong Nangka Health Center, Tangerang Regency, was one of the health centers that treated pediatric patients with diarrhea, but there was no data on the provision of complementary food to these patients. Tujuan Penelitian: untuk mengetahui hubungan antara pemberian MP-ASI dengan kejadian diare pada anak usia 6-24 bulan di Puskesmas Bojong Nangka, Kabupaten Tangerang. / Objectives: To determine the relationship between the administration of complementary food and the incidence of diarrhea in children aged 6-24 months at the Bojong Nangka Health Center, Tangerang Regency. Metode: Menggunakan jenis penelitian tipe studi analitik komperatif kategorik tidak berpasangan dengan desain studi potong lintang. Sampel berjumlah 80 responden dengan teknik pengambilan sampel menggunakan purposive sampling. Pengambilan data menggunakan kuesioner dan analisis data dengan menggunakan uji kai kuadrat atau uji fisher. / Methods: This study used a categorical comparative analytic approach, unpaired with a cross-sectional study design. The sample consisted of 80 respondents, selected using purposive sampling. Data were collected using questionnaires and analyzed using the chi-squared test or Fisher's exact test. Hasil: Dari 80 responden, didapatkan hasil sebanyak 45% mengalami diare. Data pola pemberian diketahui 11,3% sampel mendapat jenis MP-ASI tidak tepat, 30% frekuensi tidak tepat, 46,3% jumlah tidak tepat, 22,5% konsistensi tidak tepat, sedangkan untuk cara pemberian seluruh sampel (100%) sudah tepat. Analisis kai kuadrat ditemukan tidak ada hubungan yang bermakna antara frekuensi, jumlah, konsistensi dengan kejadian diare, sedangkan terdapat hubungan yang bermakna antara jenis pemberian MP-ASI (nilai p = 0,003) dengan kejadian diare. / Results: Of the 80 respondents, 45% had diarrhea. The data on the pattern of complementary food administration showed that 11.3% of the samples received the wrong type of complementary food, 30% had incorrect frequency, 46.3% had incorrect amounts, and 22.5% had incorrect consistency, while the method of administration was correct for all samples (100%). Chi-squared analysis found no significant relationship between the frequency, the amount, consistency of complementary food administration and the incidence of diarrhea. However, there was a significant relationship between the type of complementary food administration (p-value = 0.003) and the incidence of diarrhea. Kesimpulan: Pemberian MP-ASI pada anak usia 6-24 bulan di Puskesmas Bojong Nangka adalah 100% anak mendapatkan MP-ASI. Kejadian diare di Puskesmas Bojong Nangka terdapat 43,8% anak yang mengalami kejadian diare. Terdapat hubungan yang signifikan antara jenis MP-ASI dengan kejadian diare pada anak usia 6-24 bulan di Puskesmas Bojong Nangka. / Conclusion: The provision of complementary food to children aged 6-24 months at the Bojong Nangka Health Center was 100%. The incidence of diarrhea at the Bojong Nangka Health Center was 43.8%. There was a significant relationship between the type of complementary food and the incidence of diarrhea in children aged 6-24 months at the Bojong Nangka Health Center. Kata Kunci: MP-ASI, diare, anak / Keywords: complementary food, diarrhea, children