Integrated teaching is one of the main orientations in changing the general education curriculum at secondary schools in vietnam. Stem education which is responsible for providing skills for the 21th century students, is also a abilities to meet the demand of the modern society. Add, stem education is tasked with early detection, stimulating interest and educating the younger generation in competencies in the fields of mathematics, sciences, engineering, technology and informatics in order to prepare human resources to meet the requirements of socio-economic development. However, in the reality, stem intergrated teaching competence of the natural science teaching staffs at secondary school are a worrying problem. The writing mentions to the status of stem intergrated teaching competence of natural science teachers in secondary schools at central coast and central highlands regions of vietnam and solution of their teaching competence improvement. Published under licence by iop publishing ltd.