This research was conducted based on the number of stunting incidents. Stunting can increase morbidity and mortality rates and delays and delays in mental or motor development in children. This study aims to identify the effect of the quality of extension workers and economic conditions on stunting by managing nutritional quality. This study uses non-probability sampling methods and total sampling, namely taking the whole sample from the respondents. The number of pieces was 121 respondents, namely all stunted infants at Mamuju Regency. We were collecting data using the method of distributing the research questionnaire statement sheet. Data analysis was performed using path analysis. The results showed that the management of nutritional quality significantly affected the quality of extension services or economic conditions. However, the quality of extension and economic conditions substantially impact the increase in the incidence of stunting. On the other hand, the quality of extension and economic conditions show a negative indirect effect.