Based on the precipitation, snow cover depth and temperature data from 75 stations in Zhejiang Province, the National Centers for Environmental Prediction/Department of Energy (NCEP/DOE) daily reanalysis data, and Madden-Julian Oscillation (MJO) index, the general characteristics and influence mechanism of a freezing rain and snow process occurred in Zhejiang Province during 24-28 January of 2018 has been investigated. The results are as follows: (1) From January 24 to 28, 2018, continuous rain and snow weather occurred in Zhejiang, with 36.2 mm accumulated precipitation averaged over the whole areas. During the freezing rain and snow period, the maximum snow cover depth in plain and plateau ranged from 10 to 20 cm and from 20 to 35 cm, respectively, and the average temperature in Huzhou was below 0 ℃, about 4 ℃ lower than the historical.(2) During the snowfall, the trough near the Lake Baikal at high latitudes moved eastward and southward, while the southern branch trough at low latitudes moved eastward and northward. Cold and warm air flows converged over Zhejiang, and the water vapor convergence was strong, leading to the occurrence of heavy snowfall. (3) The strong MJO event developed eastward, and the sea surface temperature (SST) over the maritime continent increased, which strengthened the local meridional circulation and promoted the warm and wet air to extend westward and northward, providing power and moisture conditions for the formation of rain and snow weather. (4) Rossby wave energy from the North Atlantic and the low latitude Bay of Bengal-South China Sea accumulating in East Asia, promoted the maintenance and development of negative East Asia-Pacific (EAP) teleconnection, and was an important reason for continuous snow (rainfall) in Zhejiang Province.