background: asthma is one of non transmitted chronic diseases of greater impact by its morbidity and mortality. objective: to evaluate the treatment with moxibustion in patients with slight crisis of bronchial asthma in the emergency service at the polyclinic carlos juan finlay during the year 2008. method: a prospective analytic intervention study was carried out in patients that came to the emergency service with slight crisis of bronchial asthma. the universe of study was made up of 84 patients. the sample was constituted by 44 patients with sibilant and/or rhonchus rales criteria; it was taken in consideration the physical examination carried out by the doctor on call for the detection of clinical manifestations. the study consisted of three phases for its realization, one for detection, another for intervention with the indirect moxibustion treatment technique and a last one of evaluation for the doctor on call. results: the predominant manifestations were: cough, the dyspnea and the dry rale in 100 %; followed by expectoration, the anxiety with 88,1 % and 57,1 % respectively, 36 of patients needed two sessions of moxa to eliminate their initial clinical manifestation. conclusions: all the patients expressed to feel satisfied with the therapy.