Measuring device for highway construction

The utility model discloses a measuring device for highway construction, which comprises a measuring tape main body, a measuring tape main body stretching tape is located at the lower end of one sideof the measuring tape main body, a dustproof shell is installed at the lower end of one side of the measuring tape main body, a cavity is formed in the dustproof shell, and first through grooves are formed in the inner walls of the lower ends of the two sides of the cavity. A groove is formed in the inner wall of the lower end of the side, away from the measuring tape body, of the dustproof shell,and the groove is communicated with the first through groove in the same side and located on the same center line as the first through groove in the same side. The sliding plate can abut against theruler tape when the ruler tape is taken back, and the sliding plate and the rubber lining can slide on the surface of the ruler tape to scrape off granular foreign matters adhered to the ruler tape inthe process of taking back