Field surveying device for construction engineering cost

The invention relates to the technical field of building surveying, and discloses a field surveying device for building engineering cost, which comprises a bottom plate, sliding sleeves slidably connected to four corners of the bottom plate, conical heads arranged at one ends, close to the ground, of the sliding sleeves, a fixing mechanism and a mounting mechanism, the mounting mechanism is arranged in the middle of the bottom plate and comprises a side plate fixedly connected with the bottom plate, a mounting plate is arranged at the end, away from the ground, of the side plate, and a rotating disc is arranged on the mounting plate; the fixing mechanism comprises first fixing plates fixedly connected with the sliding sleeves, the first fixing plates are arranged on the two sides of the bottom plate, second bearing seats are arranged in the middles of the first fixing plates and rotationally connected with a main shaft, and cams are slidably connected with the two sides of the main shaft. According to the on-