The tippingbucket raingauge is widely used in meteorological services at present to measure rainfall, which can only measure rainfallFor measuring hail, snow and other solid precipitation，the manual method is used mainly Comparing with the tippingbucket rain gauge, the advantage of the weighing rain gauge is to achieve the automatic observation of various types of precipitationThe study randomly selected a day without precipitation data to determine the filter function 〖WTBX〗Q〖WTBZ〗 and 〖WTBX〗R〖WTBZ〗 values, based on the determined filter parameters, randomly selected a nonprecipitation day (3 April 2016) and two precipitation days (21 July2015, 7 August 2015) using the Kalman filter, combined with tippingbucket sensor data validation, the result shows that the filter parameters determined by using the Kalman filter can effectively remove the weighing rain noise, so that the filtered curve becomes smooth and steady, and reduce the data frequency jitters and errors