Electric wheel-rail railway transport system without speed limitation

The invention relates to an electrified wheel-rail transportation system including a roadbed G, a wheel-rail part, a rail head E and a brake friction plate D, wherein the roadbed G is a bridge roadbed rammed by reinforced concrete, an auxiliary rail frame C is arranged at each side on the roadbed G, an auxiliary rail A is arranged on each side frame, which solves the security of the roadbed, each shaft head of the wheel-rail part is lengthened, and the end part of the shaft is provided with an auxiliary wheel B capable of rotation, the auxiliary wheel B is matched with the auxiliary rail A to form a technology effect that the train never goes off the rails. The rail head E is in tangent type connection, and the friction of the brake force of the brake friction plate D acts on the L surface on the auxiliary rail A side of the roadbed two sides, which result in no rubbing to the wheels during brake.