Reverse Engineering technology has became a widely applied technology, but it has never been used in the field of Clothing Design Engineering .This paper aims to explore how to constructing the three-dimensional entity model of clothing by Geomagic software, then introduce the files into Freeform software in order to redesign clothing. The matters need attention during the Point cloud select, t data processing and model reconstruction are described in detail. In addition, the paper discusses the best solution of importing into Freeform software in different situation, also discusses the processing procedure after importing.