Due to the lack of quantitative data regarding Arctic risk assessment,the difficulties in quantifying qualitative knowledge,and the subjectivity in determining weight factors,the traditional risk assessment methods cannot be effectively solved.Therefore,in this paper the quantitative analysis of qualitative knowledge is realized by introducing the "cloud model".First,the objectivity of the weights is improved by the fuzzy analytic hierarchy process (AHP).Next,in response to the change of the Arctic regional response and its geopolitics and the game of interests under the background of climate change,the above methods and techniques are improved.This paper then presents an evaluation model and experimental simulation of interest games and security risks in the Arctic,and proposes some research opinions and information pertaining to decision-making consultation.