The invention provides a method for obtaining an FRT table in a solid state disk, which comprises the following steps: processing FRT original data, summarizing FRT data obtained by NAND test into a lower page all list, a middle page all list and an upper page all list for representing A, B, C, D, E, F and G axis data, and the lower page all list comprises three groups of data of FRT1, FRT2 and FRT3; acquiring data position offset tables of the FRT1, the FRT2 and the FRT3; extracting A-axis data, B-axis data, C-axis data, D-axis data, E-axis data, F-axis data and G-axis data from the FRT original data table; and recombining the FRT table, recombining the extracted A, B, C, D, E, F and G axis data, and storing the generated data in a file. According to the method, the FRT table applied to the SSD firmware is finally obtained by performing script analysis on the offset voltmeter obtained by the NAND test, and the FRT table is applied to the SSD firmware, so that the occurrence of read errors is greatly reduced.