Pneumatic de-icing technology has the advantages of low energy consumption and high reliability. It is widely used in small commercial aircraft as well as general aviation aircraft. Investigating the impact of various parameters on the effectiveness of pneumatic de-icing is fundamental for the design and optimisation of pneumatic de-icing systems. It is found that the inflation time of 3 s and the inflation air pressure of 0.2 MPa are the best conditions for the airbag expansion through the measurement of the expansion height. Then， experimental platforms for pneumatic de-icing systems are established in ground cold environment and the icing wind tunnel. Experimental studies on the effect of different parameters on pneumatic de-icing are carried out. The test results show that the inflation time， inflation pressure， airbag width and icing temperature all have a certain degree of influence on the de-icing rate. The best pneumatic de-icing effect is achieved only when the airbag near the leading edge stationary point reaches a certain width. In addition， the de-icing effect of glaze ice is better than that of rime ice.