Applications of vertical velocity in forecast are studied by analyzing the vertical velocity data from Zhejiang wind profiler radars (WPR). Based on falling speed data of precipitation particles in different precipitation phases, the vertical speed characteristics of different precipitation phases are established. In terms of the analysis of radiosonde and surface observation data of 4 winters during 2011-2014 in Zhejiang Province, 2 m temperature, 1000 hPa temperature, height difference between 850 hPa and 1000 hPa and the height of 0℃ layer are suggested as the best identification indexes for identifying winter precipitation types. And the best identification criterion is given at which TS score can be greater than 0.8. The TS scores of these indexes are poor to use, but when combined with index of middlelevel warm layer, they can be improved obviously.