Scientific and reasonable management of children’s daily schedule plays an important role in the development of children. Based on the data in the “Survey of Children’s Out-of-School Life in China”，which investigates onchildren’s schedule of kindergarten，primary and junior high schoolinclude the length of their school hours，the transportation they take，“who accompanies kids to school”，“where are these children stay after school” and “who will play with these children”. The investigation discovered that：（1）The sleeping time of children on school day average 9 hours and 7 minutes，the outdoor activity time average 37 minutes，they can sleep one more hour on weekends and engage in outdoor activities for another 30-60 minutes；the traveling to school takes on average 12-15 minutes，in accordance with the policy of nearby enrollment，while 37.56 percent of them walk to school，followed by driving or bicycle；73.13 percent are accompanied by parents，and 16.48 choose to go alone with another 7.24 percent go with peers；after school，73.55 percent go back home directly，14.41 percent would play near their home，school，or on their way home，10.11 percent would go to the tutoring centers；for 43.02 percent of students，their playmates are classmates or peers；another 21.25 percent would play alone；while another 18.83 percent play with their brothers or sisters；only 14.84 percent choose to play with their custodians.（2）Differences exist when discussing about children’s daily schedule，ways of going school，“who accompanies kids to school”，“where are these children stay after school”，“who will play with these children” considering their genders，school periods，family annual income，and different parent’s educational ideas. The most prominent differences exist among children with different school periods.（3）Children’s daily schedule is closely related to their physical development. Children’s BMI（Body Mass Index）is negatively correlated with sleep and outdoor activity hours，which means that a lack of sleep usually leads to obesity；children with a normal eyesight have longer sleep hours，more outdoor activities and less school time than those with a subnormal vision.