The utility model discloses a construct small -size traveling hoist, which comprises a carriage body, be equipped with davit and lifting motor on the automobile body, the lower extreme of automobile body is equipped with the gyro wheel, pole setting on the automobile body, the upper end of pole setting are with davit swing joint and enable the davit and rotate and go up and down, the front end of davit is equipped with the assembly pulley. The utility model discloses a but telescopic boom, this davit can adjust length also can 360 degrees rotations, and assembly pulley that the davit front end set up can labour saving and time saving in the time of can making constructor lift by crane the small building material to can improve the efficiency of construction.