Abstract: ObjectiveTo determine the menarche age among female students and the relation between body fat and menarche in Anhui province to provide theoretical basis for adopting intervention measure and carrying outhealth education.MethodsProbability unit regression were used to calculate MMAs in 3 000 girls aged 9～18 years old,who were selected from 3 areas in 2005.ResultsMMAs were 12.76 and 13.11 years old for urban and rural girls respectively.The youngest age was 10.The menarche age was significantly,related with BMI sebum thickness of abdomen,sebum thickness of shoulder blade and the upper arm.ConclusionThere was significant relationship between menarche age and body fat.Menarche age showed an ahead trend in Han national students in Anhui province.Sex eduction should be conducted in advance,and it was important to strengthen sex education in adolescent.