Abstract: Using the hourly precipitation observation data of Sichuan Automatic Ground Station from September 2020 to August 2021, the applicability of the 1 km hourly precipitation real-time (RT) and near real time (NRT) fusion product developed by the National Meteorological Information Center in Sichuan Province was evaluated carefully. The results show that: (1) The overall evaluation results of RT and NRT are similar, and NRT is slightly better than RT. (2) The accuracy of the two fusion precipitation products is 96.83%, which can accurately reflect whether there is precipitation. (3) From the perspective of spatial distribution, the national stations in the Basin and the West Sichuan Plateau are mainly overestimated, while the national stations in Panxi are mainly underestimated. The regional assessment stations and non-assessment stations in the Basin are mainly overestimated, while the regional assessment stations in the West Sichuan Plateau and Panxi are mainly underestimated. The distribution of RT is more discrete than that of NRT. (4) From the time distribution point of view, both products have a daily variation trend which are consistent with the observation. The error peak value appears in the summer with frequent strong convective weather, and the valley value appears in the winter with less precipitation. (5) From the test of precipitation component level, fusion products overestimate the reality when the precipitation level is light rain, fusion products underestimate the reality when the magnitude is moderate rain to heavy rain, and with the increase of precipitation level, the error increases and the TS score decreases, and the NRT component level evaluation is slightly better than RT.