Kekurangan energi kronis (kek) adalah salah satu keadaan malnutrisi, dimana keadaan ibu menderita kekurangan makanan yang berlangsung menahun (kronik) yang mengakibatkan timbulnya gangguan kesehatan pada ibu. tujuan penelitian ini adalah untuk mengetahui hubungan pola makan dan status sosial ekonomi dengan kejadian kekurangan energi kronis di puskesmas karang rejo kota tarakan tahun 2019. jenis penelitian kuantitatif dengan metode survey analitik dengan pendekatan cross sectional. populasi penelitian adalah semua ibu hamil yang berkunjung ke puskesmas karang rejo pada bulan mei 2019. teknik pengambilan sampel dilakukan dengan cara “quota sampling” yang berjumlah 84 responden. pengambilan data menggunakan kuesioner. analisis data menggunakan analisis unvariat dan bivariat dengan menggunakan uji statistika chi-square. hasil penelitian menggunakan uji statistika chi square diperoleh nilai p= 0,001 (p kurang dari a maka h0 ditolak h1 diterima, artinya terdapat hubungan antara pola makan ibu dengan kejadian kekurangan energi kronis pada kehamilan, sedangkan status sosial ekonomi dengan kejadian kekurangan energi kronis di peroleh nilai p= 0,001 (p kurang dari a) maka h0 diterima h1 ditolak, artinya terdapat hubungan antara status ekonomi ibu dengan kejadian kekurangan energi kronis pada kehamilan. untuk mengurangi terjadinya kekurangan energi kronis (kek) pada ibu hamil, petugas kesehatan diharapkan memberikan penyuluhan kepada ibu hamil agar lebih memperhatikan kesehatan dan konsumsi makanan yang bergizi selama hamil serta melakukan pemeriksaan terhadap ibu hamil agar dapat melakukan tindakan pencegahan terhadap ibu hamil yang beresiko kekurangan energi kronis (kek). kata kunci: pola makan, status sosial ekonomi, kekurangan energi kronis, ibu hamil

Chonic energy deficiency is one of the conditions of malnutrition, where the condition of mother suffers chonic food shortages (chronicles) which results in the occurrence of health problems in the mother. the purpose of this study was to determine the relationship of eating patterns and socioeconomic status with the incidence of chronic energy shortages in the karang rejo tarakan community health center in 2019. this research was quantitative with analytic survey methods with cross sectional approach. the study population was all pregnant women who visited the karang rejo tarakan community health center in may 2019. a total of 84 respondents were research samples taken by "quota sampling". data was collected using a questionnaire. data were analyzed using unvariate and bivariate analysis with a chi-square test. from the chi square test between eating patterns and chronic energy deficiency, it was obtained that the value of p= 0.001 (p less than a) h0 was rejected h1 was accepted, which means that there was a relationship between maternal eating patterns and the incidence of chronic energy deficiency in pregnancy. while for socioeconomic status and the incidence of chronic energy deficiency, the value of p= 0.001 (p less than a), h0 was rejected h1 was accepted, which means there is a relationship between maternal economic status and the incidence of chronic energy deficiency in pregnancy. to reduce the occurrence of chronic energy shortages in pregnant women, health workers are expected to provide counseling for them to pay more attention to the health and consumption of nutritious food during pregnancy and to carry out checks on them so that they can take preventative measures against pregnant women who are at risk of chronic energy shortages. keywords: diet, socio-economic status, chronic energy deficiency, pregnant women