Abstract: Newgeneration Doppler weather radar has been widely used in disaster prevention and reduction, especially inrainfall estimates.To use the local radar rainfall estimates data efficiently, this paper realized platform research for radar rain-fall estimates data and automatic meteorological station rainfall data comparison, which based on dot NET2.0 framework.Thispaper also presented data error analysis of the rainfall estimates area and comparison result.Resultsshow that the choice ofcomparable area has big effect upon radar rainfall estimates and automatic meteorological station rainfall data comparison.