本研究旨在探討健康體適能在生活滿意度、身體活動量及身體快樂訊息之分析，採用問卷調查法及實際測量進行研究，透過結構方程模式分析資料之適配程度。本研究參考教育部體育署105學年度國民體適能檢測一般站的基本資料問卷及生活滿意度、身體活動量及身體快樂訊息量表做為研究工具，採取立意取樣方式，以1360位嘉義地區一般民眾為研究對象，經極端值資料排除後，有效資料1101位，回收率為81%。所得之有效樣本以SPSS for Windows 22.0與Amos 21.0兩套軟體進行分析。本研究結果發現如下：一、嘉義地區民眾身體活動量，平均值屬於足夠身體活動量；約85%的民眾生活滿意度平均達到7分以上；身體快樂訊息構面上，平均總分約70分。二、生活滿意度、身體活動量與身體快樂訊息對健康體適能之結構模式，健康體適能對生活滿意度、身體活動量與身體快樂訊息有直接影響效果。三、生活滿意度與身體快樂訊息透過身體活動量對健康體適能之結構模式，健康體適能良好者透過身體活動量的提升，生活滿意度及身體快樂訊息亦會隨之提高。四、健康體適能分數高低分組在生活滿意度、身體活動量與身體快樂訊息之適配程度，高分組在生理方面的舒活力影響效果較好，睡眠品質較好、身體倦怠低，低分組在心理方面的愉悅力影響效果較好，感到愉悅滿足，健康體適能可以有效預測身體活動量、生活滿意度與身體快樂訊息。 The purpose of this study was to explore the analysis of health fitness in life satisfaction, physical activity and perceived body happiness. The data was collected by questionnaires, real measurement and used SEM to analysis the degree of adaptation of data. It was referred from the questionnaires of life satisfaction, physical activity and perceived body happiness, 2016 Civic Fitness Testing, MOE. The 1360 subjects were recruited by general people in Chaiyi region and used purposive sampling. the valid data 1101, the returned rate of 81%. The valid samples were analyzed by SPSS for Windows 22.0 and Amos 21.0. The results of the study was found as following:1.The physical activity of the people in the region of Chiayi, the average total energy belong to enough physical activity; above 85% of the people's life satisfaction average of 7 points or more; the dimension of perceived body happiness gained average total score 70 points.2.There was a direct effect on structural model among health-related fitness on life satisfaction, physical activity and perceived body happiness. 3.The health-related structural model through life satisfaction and perceived body happiness which increase physical activity and the scores also raised both of life satisfaction and perceived body happiness. 4.Health-related fitness divided into high-low group on life satisfaction, physical activity and perceived body happiness, which high score group could get comfortable effect on physiology aspect. Low score group could get delight effect on psychology aspect.Therefore, Health-related fitness could effective prediction for physical activity, life satisfaction and perceived body happiness.