A new attenuation correction method has been developed for the dual-frequency precipitation radar (DPR) on the core satellite of the Global Precipitation Measurement (GPM) mission. The new method is based on Hitschfeld and Bordan’s attenuation correction method (HB method), but the relationship between the specific attenuation k and the effective radar reflectivity factor Z e (k–Z e relationship) is modified by using the dual-frequency ratio (DFR) of Z e and the surface reference technique (SRT). Therefore, the new method is called the HB-DFR-SRT method (HDS method). The previous attenuation correction method, called the HB-DFR method (HD method), results in an underestimation of precipitation rates for heavy precipitation, but the HDS method mitigates the negative bias by means of the SRT. When only a single-frequency measurement is available, the HDS method is identical to the HB-SRT method (HS method).