An　effective　design　and　fabrication　of　a　more　steady　structure　for　high-performance　electrodes　applications　still　remains　a　challenge.　Herein,　we　have　designed　and　fabricated　a　hierarchical　heterostructure　of　a　graphene@polyaniline@graphene　sandwich　consisting　of　hollow　polyaniline　spheres　as　the　sandwich　layer　and　graphene　both　as　an　internal　skeleton　shell　and　a　cladding　layer.　The　special　sandwich　configuration　not　only　enlarged　the　specific　surface　area　but　also　improved　the　electrical　conductibility.　Most　importantly,　the　graphene　double　shells　could　prevent　the　structural　breakdown　(swelling　or　shrinkage)　of　polyaniline.　Therefore,　as　a　supercapacitor　electrode,　the　hybrid　exhibited　excellent　performance　with　a　specific　capacitance　of　682.75　F　g-1　at　0.5　A　g-1　and　a　remarkable　cycling　stability　with　capacitance　retentions　of　92.8%　after　1000　cycles　and　even　87.6%　after　10,000　cycles,　which　were　better　than　those　of　pure　polyaniline.　In　addition,　the　specific　capacitance　could　reach　217.11　F　g-1　at　a　high　current　density　of　20　A　g-1.　Thus,　it　could　be　considered　as　a　perspective　electrode　for　the　next　generation　of　high-performance　supercapacitors.　©　2015　American　Chemical　Society.