Under the framework of IFS(Intuitionistic Fuzzy Sets)

aiming at the situation that targets' attributes are interval value

the weights are totally unknown

and decision-makers have preference information

a threat assessment method with uncertain attribute weight based on intuitionistic fuzzy multi-attribute decision is proposed.Firstly

based on the above-mentioned problem

intuitionistic fuzzy interval judgment matrix is set up

and a standard interval value index processing method is put forward;secondly

by analyzing the target attribute

attribute weight

and decision-makers' authority degree in project

the preference project model in group decision making is finally constructed;thirdly

according to the attribute's variety character in interval value

the definition of intuitionistic fuzzy interval value's similarity and ideal resolve is given

and the optimization attribute weight restriction model is built up;lastly

some typical threat assessment examples are cited to verify that the method can reflect the influence of both subjective and objective information

which can avoid the deviation caused by sensor invalidation

outside environment's effect

or decision-makers' subjective experience.Finally

the superiority of the method is proved by the threat assessment of some typical targets.