Objective：To analyze the long-term trend of height growth at the age of 17 among 18 ethnic minority students in China from 1985 to 2019. Methods：Seven reports on the physical fitness and health of Chinese students（except for 1991）were extracted to study the average height of 18 ethnic minority students in China，including Mongolian，Hui，Uyghur，Zhuang，Korean，Tibetan，Miao， Buyi，Dong，Bai，Tujia，Hani，Dai，Lisu，Wa，Naxi，Tu，and Qiang. Results：The average height of 17-year-old boys from eaeh ethnic minorities increased significantly over the past 34 years（P < 0.05）. In 2019，among the 18 ethnic minority boys aged 17，the Hui boys had the highest average height（173.09 cm），while the Miao boys had the lowest average height（162.66 cm）. The Ethnic groups with a height increase of over 1 cm every 10 years included Dong（1.96 cm/10 years），Bai（1.96 cm/10 years），Tujia（1.95 cm/10 years），Qiang （1.80 cm/10 years），Hui（1.80 cm/10 years），Mongolian（1.79 cm/10 years），Tu（1.72 cm/10 years），Uyghur（1.63 cm/10 years）， Tibetan（1.61 cm/10 years），Buyi（1.55 cm/10 years），Naxi（1.52 cm/10 years），Dai（1.35 cm/10 years），Lisu（1.29 cm/10 years），Hani （1.25 cm/10 years），Zhuang（1.16 cm/10 years），and Wa（1.06 cm/10 years）. The ethnic group with a height increase of less than 1 cm every 10 years is Miao（0.95 cm/10 years）. In 2019，among 18 ethnic minority girls aged 17，the average height of Hui girls was the highest（161.71 cm），while Buyi girls had the lowest average height（151.63 cm）. The ethnic groups with a height increase of over 1 cm every 10 years were Tujia（1.80 cm/10 years），Hui（1.52 cm/10 years），Tu（1.25 cm/10 years），Bai（1.23 cm/10 years），Dong（1.18 cm/ 10 years），Chinese Korea（1.12 cm/10 years），and Qiang（1.04 cm/10 years）. Over the 34 years，except for Oyghur and Miao，the height of girls from 16 other ethic minorities increased significantly（P < 0.05）. Conclusion：All male ethnic minority students in China have shown a significant long-term growth trend，while most female ethnic minority students have shown a significant long-term growth trend. The uneven height growth of male and female students from different ethnic groups proves that the growth potential of minority students from different regions and ethnic groups in China can be fully realized，and higher attention needs to be paid to ethnic groups with slower height growth，and for those ethnic groups with rapid height growth，it is also necessary to prevent the negative effects it brings.