The subjects of this research included 157 boy students living in urban areas, 129 students in countries, and 71 students in mountain areas. They all were the six grade students in different primary schools. This items of the research included the body mass index (BMI), the sit and reach forward, the 1-minute sit-ups, the standing long jump, and the 800-meter run. The score was then transferred from its original into the T-score. Finally the total of the T-score was used to exhibit the standard for health-related physical fitness. The conclusion was reached by the posterior comparisons through the one-way ANOVA and the Scheffe method, and was as following. (1)There wasn't significant difference in BMI among boy students in different areas. However, the averages of height and weight of the boy students in mountain areas were significantly lower than those in urban areas and countries (p<.05). (2)There wasn't significant difference among boy students in flexibility and anaerobic power in different areas. (3)There wasn't significant difference in abdominal muscular endurance between the boy students in the countries and those in mountain areas. But the abdominal muscular endurance of the boy students in countries and mountain areas was significantly greater than that of those in urban areas (p<.05). (4)There wasn't significant difference in cardiorespiratory endurance between the boy students in the countries and those in mountain areas, but the cardiorespiratory endurance of the boy students in countries and mountain areas was significantly better than that of those in urban areas (p<.05). (5)There wasn't significant difference in health-related physical fitness between the boy students in the countries and those in mountain areas. However, the health-related physical fitness of the boy students in countries and mountain areas was significantly better than that of those in urban areas (p<.05).