  We suggest a mechanism for generation of radio emission from polars. It is
based on the cyclotron radiation of thermal electrons at the background of
fluctuating magnetic field. The source of fluctuations is Alfv\'{e}n wave
turbulence. Expressions for the radiation spectrum and degree of polarization
are obtained. By the example of the polar AM~Her, the fluxes of radio emission
from the accretion stream are calculated. Within the framework of proposed
emission model, with realistic plasma characteristics, it is possible to
reproduce observed radiation fluxes in the VLA bands.
