The invention relates to a contact rail arranging method of a railroad switch. A system for realizing the contact rail arranging method at least comprises a contact rail, insulation supporting devices and anchor devices, wherein the railroad switch is on a side line position, contact rail current collection surfaces of a railroad switch region and an adjacent region are continuous and smooth; and the contact rail is in continuous bridge joint at railroad switch breaking points, and continuous elastic bending is generated on the contact rail along with a turn-out track of the railroad switch. Through the adoption of the arranging structure of the system disclosed by the invention, the purpose that the contact rail can continuously and smoothly pass through the railroad switch region can be realized, and the purpose that a train-mounted current collector passes through the railroad switch region without impacts is realized; and electric erosion and mechanical damage of the current collector and the contact rail are reduced, so that increasing of the speed of the train passing through the railroad switch is facilitated.