An identification method of visible channel (LOS) and non-visible channel (NLOS) in CDMA mobile communication system carries on the identification of visible channel and non-visible channel according to the difference between power intensities of direct path and non-direct path at the same power time delay distribution, and furthermore, utilizes the difference between LOS power time delay distribution tau/sigma and NLOS power time delay distribution tau/sigma (tau and sigma separately refering to average time delay and mean square root time delay expansion) of multipath power distribution based on that the system is finished with coherent accumulation and non-coherent accumulation. The channel which can satisfy two conditions of the ratio between the strongest path and the partially strongest path less than the threshold k (to replace the partially strongest path by the time of average noise power when there is no |