中文摘要：

国际投资仲裁起源于国际商事仲裁,却又因为其往往涉及公共利益而得到更多的第三方关注。在第三方参与呼声日益高涨的同时,国际上出现了比较丰富的实践案例。与此同时,联合国大会在2013年和2014年相继通过《投资人与国家间基于条约仲裁透明度规则》和《联合国投资人与国家间给予条约仲裁透明度公约》。虽然目前对第三方参与投资仲裁仍有非议,但不可否认其是大势所趋,值得我们梳理借鉴。

英文摘要：

The push for transparency in investor-state arbitration is gaining momentum. In July 2013 the United Nations Commission on International Trade Law adopted the UNCITRAL Rules on Transparency in Treaty-based Investor-State Arbitration. In December 2014 the General Assembly adopted the United Nations Convention on Transparency in Treaty-based Investor-State Arbitration （Mauritius Convention on Transparency）, providing a streamlined mechanism for States to adopt the Rules on Transparency. These developments are part of a welcomed trend towards transparency in investor-state.