就日本政治来说，2015年是繁忙的一年。从中央政治来看，例行国会一直开到9月27日、安倍内阁提交国会审议的安保相关法成立；安倍首相以无投票选举方式连任自民党总裁并改组内阁。从地方政治来看，4月举行了统一地方选举，自民党自1991年以来时隔24年赢得改选道府县议会过半数议席。面对接连赢得2012年、2014年众议院大选绝对稳定多数议席以及2013年参议院定期选举改选议席的过半数议席的自民党，为应对即将到来的2016年参议院定期选举或众参两院同时举行的双重选举，以民主党为首的在野党再次走上重组与在野党共斗之路。此次民主党与松野赖久领导的维新党的重组，与1994年新进党的成立以及2003年民主党与小泽一郎领导的自由党合并不同，其实质是两个弱势政党“抱团取暖”，重组效果不明显。
On the level of central politics，Japanese Diet passed the new security bill submitted by the Abe administration before its ending on September 27th. Prime Minster Abe then reelected as the president of LDP without voting and reshuffled the cabinet. On the level of local politics，the unified local election was held in April，with LDP having won over half of all the seats in local parliaments，which has been the first time since 1991. Faced with the predominance of LDP which has consecutively won the election of House of Representatives in 2012 and 2014 and the election of the Upper House of Counselors in 2013，DPJ and other opposition parties represented have decided to work together with the aim of contesting LDP in the coming election of Japanese Diet in 2016. The merging of DPJ and Japan Restoration Party are different from the founding of New Progressive Party in1994 and the merging of Democratic and Liberal parties in 2003. It is a collaboration of two weak opposition parties and does not have obvious effect.
| Keywords： | Japan’s PoliticsUnified Local ElectionElection of the Party PresidentMerging of Opposition Parties |
