Abstract: To cover the detection blind area of existing operational radar and enhance the monitoring capability of meso-micro scale severe convective weather, Guangzhou Meteorological Bureau carry out an observation experiment since 2017. Five X-band dual polarization phased array radars (XPAR-D) have been built by January 2020. Based on integrated and modularization design, X-band Dual Polarization Phased Array Radars can use smaller antennas for a desired half-power beam width (which aids deployment and transportability and reduces costs) and realize unattended with stable operation, while higher requirements are put forward for data transmission and storage. The rapid scanning system of phased array radar is conducive to the f ine observation of weather system, and the evolution process of precipitation can be further observed by using its dual polarization function.