The invention discloses a construction site data pushing method, a construction site data management method and a construction site data management system. The construction site data pushing method comprises steps of establishing a connection between a mobile end and the system end of a BIM management system; enabling the system end to send BIM information model data to the mobile end according to the geographical location information of the mobile end; and enabling the mobile end to feed back construction site data to achieve a purpose of improving construction site management efficiency. The construction site data management method comprises steps of establishing a connection between the mobile end and the system end of the BIM management system; enabling the mobile end to send instruction information or mobile end port information to the system end and to acquire and send construction site progress information; and enabling the mobile end to simulate a construction progress based on the BIM information model data, to calculate a deviation between the construction progress and a construction plan. By utilizing the convenience of the mobile end, the data application of the BIM management system can be extended to the construction site. By using the mobile end, a user can freely compare the actual situation at the construction site, consult the BIM information model data, and achieve efficient management of the construction site.