Abstract: Inverse packet sets is composed of internal and outer inverse packet set F and ,and it is a set pair,i.e.,() is a inverse packet sets．It has dynamic characteristics．Based on outer inverse packet set theory and outer inverse packet reasoning,the several concepts are proposed,such as the intelligent fusion generating of outer inverse packet information,its redundance generating and its measure．Then the intelligent fusion theorem,the intelligent fusion dependence and reduction theorem of outer inverse packet information were given．The feature and the contraction theorem of attribute disjunction of intelligent fusion of outer inverse packet information were put forward．The principle of discovering the intelligent fusion of unknown outer inverse packet information by disjunction and contraction of attributes was given,and their application was shown in the end.The inverse packet sets is a new theory and method to research another type of dynamic information,which has the feature of attribute disjunction.

Key words: Inverse packet sets,Inverse packet reasoning,Intelligent fusion of outer inverse packet information,Attri-bute disjunction,Contraction of attribute disjunction,Intelligent fusion discovery,Application