The invention discloses a multi-functional guide device for placing nails to atlas. The device includes a bottom plate, the bottom of the left side of the bottom plate is provided with a shoulder clamp base, the top of the bottom plate is provided with a sliding groove, the inside of the sliding groove is connected with a connection plate in a sliding mode, one side in the sliding groove is fixedly provided with a gear through a rolling bearing, the right end of a rotating shaft of the gear penetrates through the bottom plate is fixedly connected with an adjusting rotary table, one side of the bottom of the connection plate is provided with a strip type tooth, the strip type tooth is meshed and connected with the gear, the upper end of the connection plate is provided with a screw orienting channel, and the top of the left side of the connection plate is provided with a head supporting plate. The device is simple and reasonable in structural design and convenient to operate and adjust, the manufacturing cost is low, the device is safe and stable, the effect of placing the nails to atlas is ensured, and the device has comprehensive functions and a wide application range and is conducive to popularization.