A new type linear ultrasonic motor using two isomorphic bending modes was designed. The dynamic design process of the stator was detailedly described based on the finite element theory. Firstly, the location of the driving feet, t he mounting location of the piezoelectric ceramics, and clamping mode of the sta tor were simulated and analyzed. Then, the advantages and shortcomings of the op erating modes using different order bending modes and the influence of different support modes on the operating modes of the stator were analyzed. A prototype m otor with a stator in length of 55 mm, a diameter of 10 mm and weight of 30 g wa s manufactured. In the case of the driving signal of 200 V (peak to peak) and 49 . 52 kHz, the motor can reach a maximum speed of 374 mm/s, a maximum thrust of 13 N and the ratio of thrust to weight 43∶1