Track gauge for railway construction

The utility model relates to a track gauge for railway construction. The track gauge comprises a slide rail, a fixed measuring plate, a movable measuring plate, an elastic element, an ultrasonic probe, a display screen and a microprocessor, wherein the fixed measuring plate is fixedly connected with a first end of the slide rail; the movable measuring plate is in slide connection with a second end of the slide rail; a first end of the elastic element is connected with the fixed measuring plate while a second end of the elastic element is connected with the movable measuring plate; the ultrasonic probe is arranged on the fixed measuring plate and is used for measuring the distance between the fixed measuring plate and the movable measuring plate; the display screen is installed on the slide rail; and the microprocessor is electrically connected with the ultrasonic probe and the display screen and is used for acquiring the distance as well as displaying the distance in the display screen. The track gauge for the railway construction adopts the elastic element to automatically adjust the position of the movable measuring plate, so that manual power for specifically adjusting and determining the position of the movable measuring plate can be saved during measuring, and the convenience is provided for use; and the track gauge for the railway construction has the characteristics of being simple in structure, low in cost, convenient to operate and high in measuring precision.