Engineering surveying pay-off device and using method thereof

The invention provides an engineering surveying pay-off device and a using method thereof. The engineering surveying pay-off device comprises a movable seat; the fixing columns are fixedly installed on the two sides of the top of the moving seat, penetrating sliding grooves are formed in the inner sides of the fixing columns, first sliding blocks are slidably connected to the interiors of the penetrating sliding grooves, rotating discs are rotatably connected to the inner sides of the first sliding blocks, and connecting columns are fixedly connected to the inner sides of the rotating discs; and the top of the connecting column is rotationally connected with a connecting disc, a supporting column is fixedly installed at the top of the connecting disc, and a pay-off device is fixedly installed at the top of the supporting column. According to the engineering surveying pay-off device and the using method thereof, the using height, angle and using direction of the pay-off device can be adjusted according to the