Abstract: A method for automatically locating a set of optimal controller parameters for an optical drive includes the steps of generating a plurality sets of numerical values each having a number of the numerical values equal to a number of the controller parameters in the set of optimal controller parameters, driving the optical drive to search a plurality of tracks based on each of the plurality of numerical value sets so as to obtain a search result, if the search result meets a predetermined result, an optimal numerical value set among the plurality sets of numerical value is taken as the optimal controller parameters, and if the search result does not meet the predetermined result, generating a new plurality sets of numerical values as the plurality sets of numerical values and going back to the step of driving until the search result meets the predetermined result. As such, the optimal controller parameters of the optical drive can be automatically located.