This invention discloses a data process method in the applied layer, in which, a protocol containing a lower layer and an applied layer includes: a step for receiving base element information containing the protocol data units of the applied layer data from the lower layer, a first judgment step of judging if the APDU is processed, a step for taking out information from APDU based on the result of the first judgment, a second judgment step for judging if there is related service list, a step for generating stipulated base elements based on the second judgment result and a step for transferring the generated base elements to the upper applied software.