Objective: The authors have researching the rate and describe some characteristic of Asthma in grade-schooler, high schooler in LeHongPhong. 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. Some characteristic of disease Asthma in Le Hong Phong school: The most asthma patient have oneself allergic or family allergic. Main cause to make appear asthma disease in the fist that is inflammation of respiratory system (71.7 percent). The factor make stimulate attack of asthma disease include: change of the weather, catch cold, inflammation of respiratory system, ...