Objective: The authors have researching the rate and describe control reality of Asthma in grade-schooler, high schooler in Le Hong Phong school. Materials and methods: The authors have used cross descriptive and retrospective study method, to be combinated interview derectly the pupil parental about knowledge, attitude and some relate factor with Asthma disease. The results obtained as follow: The rate of Asthma disease in Le Hong Phong school is 10.46 percent. Reality of Asthma disesse control: Knowledge of patient about Asthma control is restrict: rate of good knowledge is 17 percent, medium and bad is 83 percent. The most of patient only used Asthma drug when they have Asthma disesse, 14.5 percent of Asthma patient frequent control by medicine. 6.9 percent of patient Asthma control is a good, the most Asthma patient is not control or partial control.