Building construction supervision method based on BIM

The invention discloses a building construction supervision method based on BIM. The building construction supervision method comprises the following steps that firstly, a motor I (3) is started by a control switch through a controller and a wireless signal receiving and transmitting device to drive a motor shaft (4) to rotate, and the motor shaft (4) drives a protective shell (6) to move through interaction of a driving gear I (5) and an occlusion tooth (9), so that the height of the protective shell (6) is adjusted; then a servo motor (11) and an electric telescopic rod (43) are started, the servo motor (11) drives a lead screw (12) to rotate to drive a sliding block (15) to ascend, the sliding block (15) stably ascends under the action of a first limiting plate (16) and a first sliding groove (17), and the electric telescopic rod (43) shrinks to drive a plugging plate (44) to ascend to be separated from a movable groove; and then, a supervision measuring instrument (35), a camera (36) and an infrared scann