The invention relates to an operation system and a corresponding method which are used for a touch pad to operate at least one function icon displayed on a display; a touch zone of the touch pad corresponds to a display zone of the display; the operation system comprises a touch unit and a regulating unit; the touch unit is arranged on the touch pad and provided with the touch zone; the operationmethod comprises the following steps: the touch zone is touched according to the position of the function icon so as to operate the function icon; and then the operated function icon is regulated andenlarged and displayed in the display zone so as to bring convenience for the user to subsequently operate the function icon on the touch pad with the limited space.