Rainfall radar data quality control method

The invention discloses a rainfall radar data quality control method, and relates to the technical field of rainfall radar rainfall detection. A rainfall radar scans once every five minutes to generate horizontal detection data, vertical detection data, a state file and a log file, a raindrop spectrum monitoring station collects current raindrop spectrum data once every five minutes and generatesthe log file, and various data are stored in a database; a rainfall monitoring and early warning system inquires a rainfall radar operation state data file and a raindrop spectrum database in real time, reads the scanning elevation angle of each direction, the current transmitter power of the rainfall radar, the current noise value and the current state of each radar, immediately performs identification and gives an alarm when a problem occurs, and performs re-measurement to eliminate problem data when a condition is met; and if the condition is not met, a data error is prompted to cause the user to pay attention to a