This article each functional which contains in view of the mobile in carries on the discussion. For customers' angle: this research inquires about Kano-model and the TRIZ 39 characteristics union's method inquires about must-be and attractive quality elements, obtains the customer basic and potential quality demand. For designer's angle: this research screens Pugh and the TRIZ 39 characteristics union's method the designer the quality essential factor which should use in the engineering technology. Then to meet the customer quality need the improvement, and avoids the project quality essential factor conflict of the worsening. This research uses TRIZ and the QFD union's method to provide the appropriate innovation principle and to solve the contradictory relations. The further use the probability – importance comprehensive coefficient method links the appraise competitor matrix, except that may use to analyze outside the competitor fit and unfit quality condition, can also take advantage of this withdraws the most important factor, in view of the most essential facto, the solution direction provides which toward the innovation principle carries on the improvement. In view of the customer quality demand which must improve with avoids the project quality essential factor which the designer worsens, in order to solve the contradictory relations, this research proposed Copying (TRIZ40-26), Dispose (TRIZ40-27), Prior Action (TRIZ40-10), Equipotentiality (TRIZ40-12), Replacement of Mechanical System (TRIZ40-28), transformation Properties (TRIZ40-35), Dynamicity (TRIZ40-15), Segmentation (TRIZ40-01) and so on innovation principles, will enable the mobile product enterprise company to draw up the future mobile product the improvement direction.