The utility model provides an inkjet printer for printing a perovskite-based thin-film solar cell, which comprises the components of: a bedplate which is provided with a carrying surface for keeping a substrate; a printing component which is provided with a printing head and an ink cartridge, wherein the printing head is configured oppositely to the carrying surface of the bedplate and performs ink jetting on the printing area of the substrate for printing, and the ink cartridge supplies ink to the printing head; a driving system which drives the printing head and/or the bedplate for moving horizontally; a bedplate heating system which heats the substrate that is carried on the carrying surface of the bedplate from lower side; and an upper heating system which heats a thin film layer that is already formed on the substrate on the carrying surface of the bedplate from upper side. Because the upper heating system which heats the substrate from the upper surface of the substrate is arranged, the inkjet printer provided by the utility model can heat the thin film layer which is already formed on the substrate from upper side of the substrate, and therefore the perovskite-based thin-film solar cell with high efficiency can be obtained.