If you would like to write for this, or any other Emerald publication, then please use our Emerald for Authors service information about how to choose which publication to write for and submission guidelines are available for all. Please visit www.emeraldinsight.com/authors for more information. About Emerald www.emeraldinsight.comEmerald is a global publisher linking research and practice to the benefit of society. The company manages a portfolio of more than 290 journals and over 2,350 books and book series volumes, as well as providing an extensive range of online products and additional customer resources and services.Emerald is both COUNTER 4 and TRANSFER compliant. The organization is a partner of the Committee on Publication Ethics (COPE) and also works with Portico and the LOCKSS initiative for digital archive preservation. AbstractPurpose -The purpose of this paper is to discover and better understand the efficiency of university mergers from the perspective of knowledge production, with the research capability as the point of contact. Design/methodology/approach -In total, 20 colleges and universities directly under the central ministries that merged in 2000 were taken as the research samples. Factor analysis methods are adopted to calculate the public factor scores, which were taken as the basis of the time series analysis and similar comparative analysis. Findings -The results indicated that, by the end of 2005, the reform of universities merger has a positive impact on the universities' knowledge production, but there was a "short-term prosperity" after the merger happened, especially in the aspect of scientific research funding efficiency and the transformation of knowledge production outcomes. Originality/value -Few if any mergers are painless and in the literature on mergers it is generally agreed that it can take up to ten years for the wounds to heal and for the new institution forged from previously autonomous identities to operate as a cohesive and well integrated whole.