Health problems caused by insufficient physical activities have become one of the health threats in the field of global public health. The survey shows that the level of physical activity of children and adolescents is generally insufficient，with only 2.34 days per week which is merely at the international recommended amount but significantly lower than the international average level. There are other discoveries：the exercise time of boys is higher than girls in the same age group，the number in urban schools is slightly lower than rural schools，and the level of high-age group is significantly lower than that of the low-age group. Physical education classes and extracurricular sports activities have relatively low exercise intensity，which has not yet played its role in promoting the health of children and adolescents. The participation in sports clubs and organized physical exercises out of school also shows a low rate.