The invention discloses an electronic multi-scattering-angle sampling method based on acceptance-rejection sampling. The method comprises the following steps: (1) constructing a small angle similar distribution function FSA (theta) of multiple scattering angles theta; (2) calculating the maximum value fmax of the quotient f (theta) of theoretical distribution functions FMS (theta) and FSA (theta) of the multiple scattering angles theta; (3) directly sampling the multiple scattering angles theta sample according to FSA (theta); and (4) calculating f (theta sample), sampling a random number zeta in the range of [0, 1], if zeta less than f (theta sample)/fmax, receiving theta sample, and if zeta is not less than f (theta sample)/fmax, returning to the step (3). The multiple scattering angles of transportation of electrons in a medium can be sampled rapidly and accurately, the electronic Monte Carlo transportation simulation efficiency is improved, and the method can be widely applied to the field of radiation transportation simulation, the field of Monte Carlo particle transportation simulation and the like.