Abstract:Metaphors?take?advantage?of?the?knowledge?already?known?to?help?construct?a?new?understanding?of?another?field?which?is?similar?to?the?previous?one,?and?thereby?promotes?the?construction?and?reasoning?of?new?concepts?for?a?new?disciplinary?system,?the?communication?within?the?scientific?community?and?public?understanding?of?science.?This?paper?explains?the?origin?and?development?of?scientific?metaphors,?as?well?as?their?functions?in?science?innovation?and?communication.?By?a?case?study?of?artificial?intelligence,?this?paper?delves?into?the?basic?metaphors?and?sub-metaphors?and?how?their?understanding?mechanism?promotes?the?public?understanding?of science.