The invention relates to the field of printers, in particular to a printing method capable of reducing cost, which is characterized by comprising the following control processes of: 1, carrying out initializing; reading font dot matrix data of various pre-stored characters, and querying list information data; finishing initialization, transmitting the data to the MCU, and temporarily storing the data in a data annular buffer area opened up in the MCU; 2, carrying out pre-analysis; detecting and acquiring data in the data annular buffer area, and extracting the data to be temporarily stored inthe memory container; step 3, carrying out printing; obtaining data entries temporarily stored in a memory container, and drawing the data entries into a graph in a dynamic scanning area of the dynamic scanning block; and sending the drawn graph to a printing unit, and enabling the printing unit to scan and print the graph; 4, repeating the processes of the step 2 and the step 3 until all graphs analyzed from the entry data are printed; and 5, finishing printing. According to the printing method provided by the invention, the hardware cost is reduced, and the utilization rate of the memory isimproved.