To reduce the noise and vibration of corrugating machine, it is necessary to calculate the vibration modal and test the load frequency of corrugated roller. UG was used to construct the 3D model and parameteric presentation of corrugated roller as well as the special interface between UG and ANSYS. Data of the 3D model was introduced into ANSYS. The modal of corrugated rollers of different length in both load and unload condition was analyzed using the modal analysis function of ANSYS. The three groups of data consisting of 10 orders of natural frequency and mode of vibration was obtained and compared with the tested data. The purpose was to provide reference for antivibration and noise reduction of corrugated roller.