The invention relates to the technical field of rapid proto-typing, in particular to a printing method, a printing device and a printer. According to the printing method, at least one printing cycle is included; and each printing cycle comprises two or more printing processes. The method comprises the steps of obtaining the offset amount corresponding to each printing process; within each printingcycle, obtaining a second movement distance of a printing head according to the offset amount corresponding to the current printing process and a first movement distance of the printing head; and controlling the printing head to move according to the second movement distance of the printing head, so that the printing process is completed. According to the printing method, in the process of controlling the printing head to move, the printing head is controlled to shift, so that the number of ink droplets within each inch is increased, and therefore, the flatness of an object which is finally obtained can be improved.