The invention relates to the technical field of meteorological element measurement and 
technology development, and discloses a method and 
system for indirectly measuring the 
dew point temperature by amicrowave 
radiometer, wherein the method comprises the following steps: S1, carrying out data decoding of the 
microwave radiometer, and extracting the temperature and 
humidity values of N profiles; S2, automatically identifying an 
algorithm of each height point of each profile based on temperature and 
humidity values; S3, calculating the 
dew point temperature of each height point of the N profiles according to an 
algorithm matching result; and S4, generating a 0-24-h and 0-10 km 
dew point temperature hour 
height map in an imaging manner. According to the method for indirectly measuring the 
dew point temperature by the 
microwave radiometer, different algorithms are matched according to different temperature and 
humidity, 
dew point temperature values of different height points of each profile are calculated, images are generated, and 
continuous measurement of the 0-24-h and 0-10 km 
dew point temperature is achieved; and continuous judgment of atmospheric condition saturation degrees ofdifferent 
layers of 0-10 km and continuous generation of severe 
convection forecasting and early warning products serving 
convection temperature, K index, total index (TT) and the like are provided for a pre-announcer.