Portable civil engineering distance measuring device

The utility model discloses a portable civil engineering distance measuring device which comprises a supporting table, the upper surface of the supporting table is connected with a first rotating shaft through a first bearing, the upper end of the first rotating shaft is fixedly connected with the lower surface of a shell, a sliding rail and a ball are arranged between the shell and a supporting base, the upper surface of the shell is fixedly connected with a lifting table, and a motor is arranged in the lifting table. The upper end of an output shaft of the motor is fixedly connected with a first threaded column, the first threaded column is in threaded connection with a threaded pipe, the upper end of the threaded pipe is fixedly connected with a placement table, a transmission bin is arranged in the placement table, a clamping block is arranged above the transmission bin, a storage bin is formed in the shell, the side face of the lifting table is connected with a writing board, and the lower end of the sup