Identifying　the　development　trends　of　emerging　technologies　with　disruptive　potential　as　early　as　possible　is　crucial　for　enterprise　research　and　development　(R&D)　investment　planning　and　government　R&D　strategic　planning.　To　avoid　the　weakness　of　using　scientific　papers　or　patents　to　study　the　development　trends　of　emerging　technologies,　this　paper　proposes　a　research　framework　to　identify　the　development　trends　of　emerging　technologies　based　on　social　awareness　analysis.　First,　we　apply　the　Hierarchical　Dirichlet　Processes　(HDP)　topic　model　to　study　the　changing　patterns　of　social　publics＇　topics　concerning　emerging　technologies.　Second,　we　use　an　improved　sentiment　analysis　method　to　analyze　the　changing　pattern　of　social　publics＇　expectations　and　emotions　toward　emerging　technologies　over　time.　Next,　we　identify　the　development　trends　of　emerging　technologies　based　on　the　social　awareness　analysis.　Finally,　the　perovskite　solar　cells　technology　is　given　as　a　case　study　to　analyze　the　effectiveness　and　feasibility　of　the　research　framework.