Software Reuse is an approach of reuse the previously old concepts or objects into a new environment or situation and represent something new one.This representation easily use for future reference.Software Reuse model was planned,analyzed, and categorized before creating a software so that any changes persist or need to embed any extra feature then that should be introduced easily and with less complexity by using prebuild assets i.e software system is developed such that it can be reused again.The Focus of this paper to analyze how to create QR code library by using new technology like android and by using software reuse approach.How software reuse approach work in QR code library.Certain approaches such as design pattern,Aspect Oriented Integration,Generator Reuse,Object Oriented Programming Structure and Software Reuse Libraries,framework integration etc are keeping in mind while developing software reuse System.This approach increasing productivity,saving time and reducing cost of software development and minimize schedule overruns.