Energy　consumption　plays　a　significant　role　in　the　integration　process　of　Beijing-　Tianjin-Hebei　economic　belt.　This　paper　compares　energy　situation　of　Beijing-Tianjin-Hebei　economic　belt　and　Tokyo-to　metropolitan　area.　The　results　show　there　are　some　differences　between　Beijing-Tianjin-Hebei　economic　belt　and　Tokyo-to　metropolitan　area:　first,　the　proportion　of　Beijing-Tianjin-Hebei　economic　belt　in　China　is　lower　than　the　proportion　of　Tokyo-to　metropolitan　area　in　Japan;　second,　energy　intensity　of　Beijing-Tianjin-Hebei　economic　belt　experiences　a　trend　of　descending,　while　it　holds　stable　in　Tokyo-to　metropolitan　area;　third,　energy　structure　of　Beijing-Tianjin-Hebei　economic　belt　has　a　serious　reliance　on　coal,　whereas,　in　Tokyo-to　metropolitan　area,　consumption　of　oil　took　the　main　proportion　of　energy　structure,　consumption　of　renewable　energy　increasing　constantly.　Based　on　our　findings,　we　present　some　policy　implications　for　energy　save　in　Beijing-Tianjin-Hebei　economic　belt.　©　Published　under　licence　by　IOP　Publishing　Ltd.