The utility model relates to a measuring adjustable plate device for installing a track plate during the high-speed railway ballastless track building process. The device comprises a primary standard and triangular compasses, wherein tilt sensors are respectively arranged on a long pole and a middle pole of the triangular compasses, and a laser level is arranged at the lower part of a connecting plate for connecting the long pole and the middle pole. Since the long pole of the triangular compasses is longer than the conventional long pole, the primary standard can be directly placed on a supporting layer, therefore, the work for pouring the convex retaining table on the supporting layer is omitted, the distinction between the two working procedures for control and encryption during the process of testing the primary standard is eliminated, the working procedures are simplified, and the cost is saved; the lengthened triangular compasses adopt the electronic tilt sensors to replace the tubular level bubble, thereby the measuring accuracy is improved, and the personal error is reduced; the laser level is arranged on the lengthened triangular compasses, so as to enhance the measuring accuracy of the mean line, and the problem of adjustment for the middle elastic body bent downwards during the process of arranging the track plate is solved; and the measuring adjustable plate device has good market prospect along with the popularization of the innovative project for construction of the high-speed railways in China.