The polarization weather radar is a new kind of weather radar.It's development bring about a great advance in radar meteorology and cloud as well as precipitation physics,and strengthen the capacity of understanding meteorological disaster by peoples.This paper discusses the current developing situation and application potential of circle and elliptical and dual-linear polarization weather radar in research of cloud and precipitation physics as well as weather modification.It will be useful for the development and application of polarization radar in our country.