The invention discloses a cell evaluation method and device. The cell evaluation method and device are applied to a network simulation model. The method comprises the steps of constructing a channel matrix for a region to be tested in the simulation model, wherein the channel matrix consists of submatrices corresponding to each transmitting antenna in a downlink cell, the downlink cell covers the region to be tested and each submatrix comprises signal impact responses caused by the corresponding transmitting antennas to each grid in the region to be tested; determining characteristic solutions of the channel matrix and obtaining the non-zero proportion of the characteristic solutions; acquiring signal-to-noise ratio of the region to be tested; determining the transmission mode of the region to be tested according to the non-zero proportion of the characteristic solutions and the signal-to-noise ratio. Compared with the prior art, the scheme provided by the invention further considers the signal impact response caused by each grid to each transmitting antenna; since the accuracy is extremely high, the fading phenomenon of channels in a small range can be reflected, thus the transmission mode of the cell to be tested can be more accurately determined and the simulation model can simulate the self-adaption of the transmission mode of systems such as LTE (Long Term Evolution) systems.