Abstract: Four two-dimensional raindrop spectra from the Fengyun Satellite South China Precipitation Validation Station，along with synchronized minute rain gauge data during Apirl to May 2024 were used. By comparing cumulative rainfall from the rain gauge and raindrop spectra, as well as the instantaneous rain rate from the raindrop spectra and rain gauge, the consistency of precipitation observations between the two devices was analyzed. The results indicate that in 3 of 4 stations, the cumulative rainfall of the raindrop spectrum is greater than that of the rain gauge, with a total amount 10%-13% higher. In 1 station, the cumulative rainfall of the raindrop spectrum is less than that of the rain gauge, with a decrease of 0.5%. The correlation coefficient between the two devices for observing cumulative rainfall is high, with the average reaching above 0.99. When comparing instantaneous rain rate, performing cubic spline interpolation on the rain gauge can significantly reduce the bias and mean absolute error between the raindrop spectrum instantaneous rain rate and the rain gauge instantaneous rain rate, especially for weak precipitation with discontinuous observations<10 mm · h^-1, the correlation coefficient can be increased from 0.37 to around 0.8.This indicates that the interpolation method is reasonable and feasible, and can be used to generate instantaneous precipitation rate datasets for ground rain gauges. After evaluation, there is good consistency between the two-dimensional raindrop spectrum and the rain gauge, which can be used to support the ground validation and algorithm improvement of the Fengyun satellite precipitation retrieval product in the future.