With the recent emphasis on the understanding of the role of clouds in the global radiation budget, the scope of radar meteorology has expanded to include the measurement of cloud properties and structure. The millimeterwavelength radar is recognized as having the potential to provide a more sensitive probe of cloud particles ranging from a few micrometers in diameter to precipitation drops. A radar operating at 35GHz was designed and assembled primarily for observing clouds and precipitation by the State Key Laboratory of Severe Weather (LaSW) of CAMS (Chinese Academy of Meteorological Sciences) in 2006. The parameters and characteristics of the radar system as well as its activities in field experiments are introduced. Some examples of different kinds of clouds (such as Cb，Sc, Ci, Ac) are presented to demonstrate the capability of HMBQ radar.