Abstract: Based on the channel selection method of sweeping frequencies and angles by ground-based radiometers, the low layer atmospheric parameters are retrieved by utilizing the 2005 to 2013 years'sounding data of Qingdao China meteorological station and BP (back-propagation) network inversion method. The inversion low layer atmospheric parameters' RMS error is less than 0.8K compared to the actual sounding data. The principium project of a new inversion low layer atmospheric parameters model is proposed combined with the measured parameters of radiometers, which provides a more reasonable basis and method for the real time detecting of meteorological parameters of low layer atmosphere .