中华人民共和国劳动合同法 第十四条

无固定期限劳动合同，是指用人单位与劳动者约定无确定终止时间的劳动合同。用人单位与劳动者协商一致，可以订立无固定期限劳动合同。有下列情形之一，劳动者提出或者同意续订、订立劳动合同的，除劳动者提出订立固定期限劳动合同外，应当订立无固定期限劳动合同：（一）劳动者在该用人单位连续工作满十年的；（二）用人单位初次实行劳动合同制度或者国有企业改制重新订立劳动合同时，劳动者在该用人单位连续工作满十年且距法定退休年龄不足十年的；（三）连续订立二次固定期限劳动合同，且劳动者没有本法第三十九条和第四十条第一项、第二项规定的情形，续订劳动合同的。用人单位自用工之日起满一年不与劳动者订立书面劳动合同的，视为用人单位与劳动者已订立无固定期限劳动合同。

Labor Contract Law of thePeople’s Republic of China, Article 14

An open-ended labor contractis one where the employing unit and the worker have agreed not to stipulate adefinite ending date.

An employing unit and aworker may conclude an open-ended labor contract upon reaching consensusthrough consultation. If a worker proposes or agrees to renew the laborcontract or to conclude a labor contract in any of the following circumstances,an open-ended labor contract shall be concluded, unless the worker requests theconclusion of a fixed-term labor contract:

(1) The worker has beenworking for the employing unit for a consecutive period of 10 or more years;

(2) The worker has beenworking for the employing unit for a consecutive period of 10 or more years butless than 10 years away from the statutory retirement age when the employingunit introduces the labor contract system or when the State-owned enterprisehas to conclude a new labor contract with him as a result of restructuring; or

(3) The worker intends torenew the labor contract after he has consecutively concluded a fixed-termlabor contract with the employing unit twice and he has not been found in anyof the circumstances specified in Article 39 or Subparagraph (1) or (2) inArticle 40 of this Law.

If an employing unit fails toconclude a written labor contract with a worker within one year as of the datewhen it employs the worker, it shall be deemed to have concluded an open-endedlabor contract with the latter.