[目的/意义] 探究各学科 CSSCI 来源期刊头部发文机构固化现象及固化程度，为研究科学发展结晶现象的影响提供参考。[方法/过程] 以 CSSCI 来源期刊发文机构为分析对象，从机构发文量、学科机构发文占比、机构平均发文量、头部发文机构净流动率等方面，对 CSSCI 来源期刊头部发文机构固化现象以及学科头部发文机构固化程度进行分析。[结果/结论]CSSCI 来源期刊各学科发文机构分布呈“头部集中—尾部分散”，少数发文机构近 20 年始终保持较大的发文占比，前 1%、前 10%、前 20% 不同范围内头部发文机构固化程度不同，整体上看，经济学头部发文机构固化程度最高，人文经济地理与艺术学头部发文机构固化程度最低。

[Purpose/Significance] To explore the solidification phenomenon and its degree of the head publishing institutions of CSSCI source journals in various disciplines, so as to provide reference for studying the influence of crystallization of science. [Method/Process] Taking the publishing institutions of CSSCI source journals as the analysis object, this paper analyzed the phenomenon of the solidification of the head publishing institutions of CSSCI source journals, and the degree of solidification of the head publishing institutions of varius disciplines from the aspects of the amount of articles issued by institutions, the proportion of articles issued by disciplines, the average amount of articles issued by institutions and the net flow rate of the head publishing institutions. [Result/ Conclusion] The distribution of publishing institutions in various disciplines of CSSCI source journals is “centralized at the head-decentralized at the tail”, and a few publishing institutions have always maintained a large proportion of publishing in the past twenty years. The solidifying degree of the head publishing institutions is different in the first 1%, the first 10% and the first 20%. On the whole, the solidifying degree of the head publishing institutions of economics is the highest, and that of humanities, economic geography and art is the lowest.