Teachers are the decisive force in determining the quality, efficiency of teaching and educational activities. Improving the quality of teachers will play a decisive role in the quality, efficiency of teaching activities. To implement the school development strategy to meet the trend of development of the new era, improving the quality of teachers is a key link because teachers are the ones who create the transformation for the entire education system. In fact, Phạm Thành Trung High School has done well in improving the quality of teachers. The quality of education of the school is increasingly high and has affirmed the position of the school in the locality.