Methods for feature modeling and non-feature modeling methods in reverse engineering were discussed. Taking connecting rod as an example, the feature modeling process with Geomagic Studio was described and analyzed by comparison with nonfeature modeling. By the function of parametric switch, CAD model was imported into the software of SolidWorks, and parametric changes of the feature model was achieved. Practical modeling results showed that the feature modeling of reverse engineering had better ability to represent the design intent of the original product, and also can be parameterized modified to support further innovative design.