the special setting up of the right pledge system are closely relationship with the classification of the property and of the legal behavior.The way of the legal thinking in right is regarded as property,and the right transferring is regarded as the property legal behavior,made the right pledge system became a single personal property security interests law in the designing of the security law system,and this is the where it is coming from.The legal thinking which that the right is not the real property,the property of the no-prohibiting can be secured,and the establishing of the uniform in personal property security interests register,which that all can mede the right pledge disappear,and this is where it go to.The going to of the right pledge can made the appropriate change of the security interests system.and the unified personal property interests system will appear sooner or later:either is in fact not in form,or is in form and in fact.