The invention discloses a sealing and cutting tracking control system for a continuous automatic packaging machine. The sealing and cutting tracking control system comprises a PLC controller, a proximity switch, a photoelectric switch, a longitudinal sealing driver and a horizontal sealing driver, wherein the proximity switch and the photoelectric switch are unidirectionally connected to the PLC controller; and the longitudinal sealing driver is unidirectionally connected with a longitudinal sealing motor. A sealing and cutting tracking control method for the continuous automatic packaging machine comprises the steps of selecting a cursor tracking mode, comparing a received photoelectric switch signal with a sealing position signal and a proximity switch signal, then comparing the photoelectric switch signal with a cutting cursor position, if the two are the same, continuing to execute a program according to original parameters by the controller, if the two are different, calculating the error, correcting by adjusting the cutting cursor position, and executing the program according to new parameters by the controller, until the speed of a paper feeding wheel meets the needed requirements. According to the sealing and cutting tracking control system and the sealing and cutting tracking control method disclosed by the invention, a horizontal sealing eccentric wheel mechanism of the packaging machine is omitted, the system is convenient to operate, and when the lengths of bags to be made are different, only corresponding length sizes need to be reset in the system.