The utility model relates to a tile inkjet printer with an improved inkjet head base plate withdrawal system. The tile inkjet printer includes a rack, an operating display screen, a tile conveyor belt, an inkjet head cleaning system and an elevating shelf. Inkjet heads of multiple sets of colors are fixed on the elevating shelf in a unified manner; and a set of inkjet head withdrawal assembly is disposed corresponding to each set of color; the sets of inkjet head withdrawal assembly are disposed adjacently and side by side; each set of inkjet head withdrawal assembly is composed of an installation fixing frame, a rail and a sliding block; the inkjet heads of the same color are fixed in a unified manner on the installation fixing frame of the same set of inkjet head withdrawal assembly; the rails are connected between the elevating shelf and the installation fixing frames; through the rails and the sliding blocks, the inkjet heads of the same set of color can be withdrawn separately out of the elevating shelf; and the center distance between each set of color is ensured, phenomena of inaccurate position are reduced, tile print quality is guaranteed, the qualified rate of products is improved and inkjet head installation base plates of each set of color can be withdrawn separately for use, thereby enabling simple assembly and maintenance, reducing labor intensity and saving production costs.