Abstract: The airborne dual frequencies (Ku and Ka band) precipitation radar field campaign was operated in Dongtai, Jiangsu Provinec during 6 September to 20 Oetober 2010. Many valuable experimental data has been collected after this campaign. Based on the data, the rain detective ability of the airborne radar is analyzed. The comparison of radar reflectivity factor profile between the airborne radar and the Precipitation Radar (PR) on Tropical Precipitation Measure Mission(TRMM) shows the airborne radar has an ability to detect the vertical structure of rain, including the melting layer. In order to do the rain retrieval of the Ka band,the relationship betwecn k-Zc and R-Zcwas calculated firstly by using the Satellite Data Simulator Unit (SDSU),and then the measured radar reflectivity factor profile was corrected. The results show that the rain rate retrieved by the Ku band is almost the same as that of Ka.