Compared with the requirements set out by the Ministry of Education and Training on public innovation, the student assessment tests in the 2018 New High School Program, this problem in the research area still has many shortcomings. From the researches on the theory and reality of managing activities of testing and assessing students’ learning outcomes in the direction of competency development in high schools in the study area, the article proposes 06 Management measures of the principals of schools to improve the management efficiency of the activities of testing and assessing students’ learning outcomes in the direction of capacity development in high schools in District 3, Ho Chi Minh City. Bright.