Abstract : Stunting has a risk of increasing susceptibility to disease. National policy recommends complementary feeding (breast milk complementary food) from 6 months to 24 months of age. The purpose of this research was to find a correlation between the provision of fortified breast milk complementary food and the growth of stunted children in Panyabung Jae District. This intervention research used a quasi-experimental research method with pre- and post-test study designs. The research sample was children aged 6 months–2 years who suffered from stunting and were given fortified breast milk complementary food. Repeated anthropometric examinations and evaluations of dietary compliance were carried out every 2–3 months. Data analysis was performed using the independent T test, Mann Whitney, and McNemar test, with a p value < 0.05 showed significant results. In total, there were 65 children aged 6 months–2 years, and there were 24 stunted children. The majority of stunted children are women (54.2%), with mean age of 14.71 years. The research findings revealed significant differences weight and height at the final examination of stunted children (p< 0.001). The Mann-Whitney test also showed a difference weight and height gain after receiving complementary foods (p<0.001 for each). In addition, the provision of fortified breast milk complementary food resulted in a change in children's status from stunted (41.4%) to normal (1.7% left). McNemar's test also showed a significant difference in status before and after fortified complementary foods intervention for 3 months (p<0.001). There are significant differences weight and height gain in stunted children. There is a significant difference in stunting status before and after packaged fortified breast milk complementary intervention.