Stunting is a new problem commonly associated with toddler growth and development. It is found in several regions in Indonesia, especially Payangan Sub-district, Bali. Therefore, according to the Gianyar Regency Government to realize a child-friendly village, stunting cases in toddlers need to be addressed by all relevant parties. Before entering the stage of being able to cope, the ability to detect the case is needed. Efforts to detect possible cases at an early stage in the community is performed by the cadres of Integrated Healthcare Center (Posyandu) and Toddler Family Development (BKB) as the frontline for health services at the banjar level. These cadres need to possess adequate knowledge, skills and ability to detect stunting cases. Therefore, this research aims to improve the ability of cadres through the implementation of training for early stunting case detection. After the training is conducted, the cadres are expected to be able to assist in the faster detection of cases, and provide reports, thereby, leading to a rapid response by relevant parties simultaneously. The training participants' knowledge of stunting were assessed using the pretest and posttest methods. Data analysis showed that the average pretest and posttest values were 2.9 ± 1.02 and 7.6 ± 0.82, respectively. The results showed that there is a significant increase in the participants' knowledge by 61.84% (p = 0.000).