INTERNATIONAL JOURNAL OF MULTIDISCIPLINARY: APPLIED BUSINESS AND EDUCATION RESEARCH 2023, Vol. 4, No. 2, 609 – 615 http://dx.doi.org/10.11594/ijmaber.04.02.27 How to cite: Lisnasari, S. F., Sekali, P. br K., Jainab, Widiyarti, G., Sidebang, R., & Simbolon, R. (2023). The Importance of Principal Leadership Management in Increasing the Competence of Elementary School Teachers in Medan City, North Sumatra. International Journal of Multidisciplinary: Applied Business and Education Research. 4(2), 609 – 615. doi: 10.11594/ijmaber.04.02.27 Research Article The Importance of Principal Leadership Management in Increasing the Competence of Elementary School Teachers in Medan City, North Sumatra Srie Faizah Lisnasari*, Pelista br Karo Sekali, Jainab, Gemala Widiyarti, Restio Sidebang, Rinci Simbolon Leadership management, head school, teacher competence Article history: Submission February 2023 Revised February 2023 Accepted February 2023 ABSTRACT To leadership to the principal of the school plays an important role in improve the competence of teachers in their schools. Efforts to increase this are carried out by making policies that are translated into pro- grams to increase teacher competency. This study aims to describe; (1) Principal Management in Improving Teacher Competence; (2) Principal Management Success in Increasing Teacher Competence; (3) Support- ing factors, inhibiting factors and solutions for Principal Management in Improving Teacher Competence at SD N Medan City, North Sumatra. This research is in the form of qualitative research, the data collection method used is observation, interviews, and documentation. The re- search results show that Principal management in improving teacher competence, namely : (1) Involving teachers in training, training and seminars, (2) Implementation of supervision (3) Prioritizing discipline, (4) Motivating teachers. Application of leadership management school principals in improving teacher competence greatly affect the compe- tence of teachers in SD N Medan City, North Sumatra, namely that the teachers have started apply the basic competency standards regulated by the government as well as possible. In implementing the program there will be supporting factors, inhibiting factors and leadership man- agement solutions principal in improving teacher competence in Ele- mentary School Medan City, North Sumatra. Keywords: Head school, Leadership management, Teacher competence *Corresponding author: E-mail: lisnasari.2502@gmail.com Introduction According to Law No. 20 of 2003 concern- ing the National Education System Year 2003, The function of national education is to develop and shape the character of a dignified national civilization in order to educate the nation's life. Education is a central point in building the sus- tainability of the Indonesian nation from gener- ation to generation (P. S. Tirauyah & Sibuea, 2018). In realizing this function of national