The study investigated differences in daily life experiences and affect states depending on levels of physical activity among elementary school 6th grade students. To indicate daily life experiences, the amount of time spent across 4 location contexts(home, school, public place, institute), 4 daily activity contexts(schoolwork, active leisure, passive leisure, maintenance) and 4 interpersonal contexts(alone, family, friend, other) were measured and to indicate daily life affect states, levels of happiness and worry across those daily activity and interpersonal contexts were measured using Experience Sampling Method(ESM). The levels of physical activity among elementary school 6th grade students measured using International Physical Activity Questionnaires(IPAQ). A sample of 85 students(45 boys and 40 girls) reported their daily life experiences six times a day for 4 days. Based upon the result of this study, the following conclusions were drawn as follows: Frist, high level of physical activity group boys spent more time alone than with their family members or friends compared to low level of physical activity group boys. And, high level of physical activity group girls spent more time with their family members or friends than alone compared to low level of group girls. Second, high level of physical activity group boys and girls experienced higher happiness and lower worry across daily activity and interpersonal contexts compared to low level group counterparts. Finally, high level of physical activity group boys’ affect states varied across daily activity and interpersonal contexts less than low level group counterparts. The findings were discussed in the stability of affect states across daily life contexts to indicate physical activity.