Introduction: School myopia is one of the most common refractive errors among students and teenagers, particularly prevalent among children aged 8 to 12. This study describes the current status of school myopia among students at the Ethnic Minority Boarding School in Dong Hy, Thai Nguyen province, and some related factors. Research Method: The study was conducted on over 300 students at the Ethnic Minority Boarding Secondary School in Dong Hy, Thai Nguyen province, to investigate the status of school myopia and some related factors using a cross- sectional descriptive research method. Results: 12.3% of the students were found to have myopia, of which 70.3% had myopia in both eyes; 91.1% had mild myopia (<3 Diopters), and 8.1% had moderate myopia (3-6 Diopters); the proportion of students using glasses for myopia was 81%. Factors related to the prevalence of myopia included: a family history of myopia, being female, using a computer at a distance of less than 50 cm, using a computer continuously for more than 2 hours, and using a smartphone continuously for more than 2 hours.