Abstrak: Stunting menjadi masalah prioritas. Kabupaten Klaten menjadi salah satu kabupaten prioritas. Terdapat 10 lokus stunting. Prevalensi tertinggi adalah Desa Kujon sebanyak 20%. Program ini bertujuan meningkatkan pengetahuan kader tentang stunting. Metode dinamika kelompok digunakan dengan pendekatan teori Pengembangan Kelompok yang terdiri tahapan forming, norming, storming, performing, dan adjouring dengan media Buku Saku, Integrated Card, dan kertas Flipchart. Hasil program menunjukkan bahwa dari 10 soal pretest dan posttest yang diberikan kepada kader kesehatan, terdapat pertanyaan dengan jumlah penjawab benar pada posttest lebih banyak dibandingkan pretest terdapat 5 butir, yakni pada pertanyaan Istilah untuk kader untuk penanganan stunting, Pengertian stunting, Program penanganan stunting pada ibu hamil, Isi piringku, dan Cara memotong makanan. Terdapat 64,7% mengalami peningkatan pengetahuan dan 29,4% nilai pengetahuannya tetap. Diharapkan adanya program pelatihan kapasitas kader yang lebih spesifik, seperti identifikasi temuan stunting, komunikasi efektif, dan teknik konseling.Abstract: Stunting is a priority issue. Klaten Regency is one of the priority districts. There are 10 stunting location. The highest prevalence is Kujon Village about 20%. This program aimed increase the knowledge of cadres about stunting and train team cohesiveness in formulating programs. The group dynamics method is used with a group development theory approach which consists of the stages of forming, norming, storming, performing, and adjouring with the media of Pocket Book, Integrated Card, and Flipchart paper. The results of community service showed that of the 10 pretest and posttest questions given to health cadres, there were questions with more correct answers in the posttest than in the pretest, there were 5 items: The terms for cadres for handling stunting, Definition of stunting, stunting management program in pregnant women, Fill my plate, and How to cut food. There was 64,7% who experienced an increase in knowledge about stunting and 29,4% who had the same value. It is hoped that there will be more specific cadre capacity training programs, such as identification of stunting findings, effective communication, and counseling techniques.