Abstract: In order to comparison and analysis of the inversion accuracy of FY-4A and FY-4B hourly quantitative precipitation estimation (QPE),this study focuses on the Meiyu process of 2023 in Hubei province, using hourly precipitation data measured by rain gauges as the standard, and analyzes the recognition performance and inversion accuracy of FY-4A/4B hourly QPE for ground precipitation, as well as its spatial distribution differences. The results are as follows. (1) The probability of detection (POD), miss alarm rate (MAR), and false alarm rate (FAR) of FY-4A (FY-4B) hourly QPE for ground precipitation are 52% (58%), 48% (42%), and 52% (53%), respectively, indicating a little better recognition performance of hourly QPE in FY-4B than in FY-4A. (2) The correlation coefficient between the hourly QPE of FY-4A (FY-4B) and ground precipitation is 0.44 (0.44), with a mean error (ME) and root mean square error (RMSE) of 0.88 mm (0.57 mm) and 6.09 mm (5.91 mm), respectively. Overall, the hourly QPE of FY-4A/4B overestimates ground precipitation, and the inversion accuracy of FY-4B is a little higher than that of FY-4A. Moreover, the inversion accuracy of hourly QPE in FY-4A /4B has a diurnal variation characteristic of high during the day and low at night, which may be related to the amount of precipitation, the frequency of rainstorm and heavy rain. (3) For different grades of precipitation, FY-4A/4B hourly QPE overestimates light and moderate rains, yet underestimates heavy rain and rainstorm. The degree of overestimation decreases with the increase of rainfall intensity, while it is opposite for the degree of underestimation. (4) The method of processing precipitation of ≥20 mm to 20 mm in FY-4A/4B hourly QPE has a certain impact on its inversion accuracy. Additionally, there are spatial differences in the recognition performance and inversion accuracy of FY-4A/4B hourly QPE for ground precipitation, which may be related to the different sub-satellite point of FY-4A and FY-4B that may cause the parallax difference and the different radiation received by the satellite.