The rise of unconventional energy，including shale gas and gas hydrate，has brought significant changes to global gas market，energy supply pattern，and geopolitics，therefore both Japan’s and China’s energy strategies are greatly affected. “Shale gas revolution” has strengthened USA’s dominancy in energy diplomacy and climate change response. The Middle East has redirected its gas exports to Europe and Asia-Pacific region. Russia has to change its energy strategy on Europe and China. It is worth noting that the development technique and experience of gas hydrate will probably be a bargaining chip in Japan’s energy diplomacy. China should draw upon Japan’s active participation in North America’s shale gas development，and joint efforts of government and enterprises to develop gas hydrate