The invention discloses a vibration suppression method based on instruction sequence of the numerical control turning process. The method comprises the following steps: (1) a modal experiment is performed to identify the kinetic parameters of a numerical control machine tool; (2) a cutting force experiment is performed to identify the coefficient of the static cutting force; (3) a stability curve of the machining process is made according to the kinetic parameters obtained in the step (1) and the cutting force coefficient obtained in the step (2); and (4) after the stability curve is stored in a numerical control system, the machining process can be started, the current technological parameters are compared with the stability curve continuously, and the current numerical control machining program is optimized to suppress vibrations in the machining process. The method of the invention breaks through the mode of the traditional method that the stability curve is used to determine the technological parameters and then the numerical control machining program is programmed, the program can be generated in advance and the program is optimized instantly through the numerical control system, thus the programming efficiency can be greatly increased and the programming of the numerical control machining program can be easier.