System and method for detecting turnout and switch point closure of turnout

The invention discloses a system and method for detecting a turnout and switch point closure of the turnout. The method includes the steps that distance information between a first point rail and a first basic rail is acquired through a first range finder; then, the distance information on the first range finder is read by an information processing device and converted into a switch point closurevalue of the turnout, and the switch point closure value of the turnout is transmitted to a monitoring center, so that an operator accurately obtains the switch point closure state between the first point rail and the first basic rail and can accurately and safely carry out shunting guidance operation, and the running safety of a locomotive on the turnout is greatly improved. Since the first rangefinder is directly arranged on the first point rail or the first basic rail, the first range finder can directly obtain the distance between the first point rail and the first basic rail without inverse calculation operation,