To investigate the visual acuity of the primary school children. the visual acuity test wan performed the object and subject method. The results were follows. 1. The eye types were 94.8% positive for myopia, 1.2% for emmetropia and 4.0% hyperopia, respectively. 2. The abnormal refraction eyes were 71.3% positive for simple myopia, 17.9% for myopic compound astigmatism, 6.9% for myopic simple astigmatism, and 2.5% for simple hyperopia, 0.6%for hyperopic compound astigmatism, 0.8%for hyperopic simple astigmatism, respectively. 3. The axis of astigmatism were 72.8% for astigmatism with-the-rule, 23.2% for astigmatism against-the-rule, 4.0% for astigmatism oblique, respectively. 4. On the total myopic spheric power, the -0.50<spheric equivalent<-2.00diopter was 71.3%, the -2.00<spheric equivalent<-6.00diopter was 27.3% and anything over the -6.00diopter was 1.4%. 5. On the astigmatic power, the 0.50<cylinder<1.00diopter was 60.0% the 1.00<cylinder<2.00diopter was 29.2% and anything over the 2.00cylinder diopter was 10.8%. 6. The total hyperopia spheric power was 66.7% anything under 2.00diopter and 33.3% for anything under the 2.00diopter. 7. The pupillary distance presented from 51mm to 65mm, in most case, the pupillary distance was 59mm and 61mm.