In recent years the study of polarimetric technology for detecting atmosphere has made great progress, and become a popular aspect of radar meteorology. This paper presents detecting technology status of circular polarization and evolvement of dual-linear polarization, and new application to detecting atmosphere of polarimetric technology, and prospects future meteorological application of polarimetric detecting technology. At a more advanced stage, polarimetric basis, implement system, scheme designs, production method and wavelength selection are considered, being useful to the study of polarimetric technology detecting atmosphere.