Objective:This paper is to research antitussive, apophlegmatic and antiasthmatic effects of “Qingfei Zhikeling Syrup” on chronic bronchitis acute attack  Methods:Thre  Methods: were used in this experiment include the observation of cough that was induced by SO,2, in mice, observation on the phlegm expelling in rats by using glass capillary and the observation of incubation period of guinea pig induced by histamine phosphate  Results:“Qingfeizhikeling Syrup” can significantly prolong the mice to SO,2, stimulation caused cough incubation period (P,<,0.05), can significantly increase the rat trachea sputum volume(P,<,0.05), can obviously prolong the guinea pig histamine phosphate spray out of the incubation period(P,<,0.05)  Conclusion:“Qingfeizhikeling Syrup” of chronic bronchitis acute phase has obvious Antitussive, apophlegmatic and anti-asthmatic effect.