The invention discloses a hot-rolled aluminum plate packaging device based on a densely wound coil. The device comprises a connecting base and supporting bases which are arranged at two ends of the connecting base. The connecting base is of an I-shaped structure. A hanging hole for mounting a hanging tool or connecting a hanging rope and a connecting hole connected to the densely wound coil of the adjacent aluminum plate are formed in a middle straight plate; vertical plates on two sides of the connecting base are fixedly connected to the supporting bases which are rubber bases; insertion holes matched with the hot-rolled aluminum plate in pipe diameter are formed in the base bodies, and the insertion holes are uniformly distributed along the vertical direction. According to the device disclosed by the invention, the inner sides of the supporting bases are planes which are connected to the vertical plates on the two sides of the connecting base through a high-strength adhesive, so that the supporting bases are high in bonding strength and convenient to assemble; the supporting bases of adhesive forming are inserted into the connecting hole through an anchor rod to connect the densely wound coil of the aluminum plate to form a multilayer structure; the hanging tool is mounted through the hanging hole or the hanging rope is connected, so that batch transportation can be achieved.