随着时间、环境的不断变化及企业技术创新能力的进一步要求，现有的技术创新能力已逐渐不能满足企业技术创新的要求，因此技术创新能力更新成为企业在新的要求下的一种能力行为。文章基于粗集理论研究了新要求下的企业技术创新能力更新方法，确定技术创新能力更新次序以达到更新费用最低，随后分析算法并通过实例证明其有效性。

Along with the time and the environment unceasing change and enterprise technology innovation competence's more requests, the technology innovation competence can not satisfy enterprise technology new requests, and therefore technology innovation competence renewal is enterprise's one kind of competence behaviors under the new requests.This article studied enterprise technology innovation competence renewal method under the new requests based on rough set theory, acquiring the renewal order with the minimal expense. The validity of the algorithm was given in the end.