Disclosed is a friction-blocking aerial rail train stopper to effectively absorb kinetic energy of a train to enable the train to slowly stop sliding so as to avoid head-on collision of the train and a retaining block. The friction-blocking aerial rail train stopper comprises a left winding wheel, a right winding wheel and a blocking rope, the left winding wheel and the right winding wheel are arranged on the transverse outer side wall of a rail beam respectively and provided with a friction block acting on the left winding wheel and the right winding wheel, and two ends of the blocking rope are fixedly connected with the left winding wheel and the right winding wheel respectively and wound by multiple circles to form a blocking rope straightening section opposite to a hook or a steering frame of the train below the rail beam of a wheel system.