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以2015年自然科学版JCR(S04CR)收录的8 778种期刊为研究对象,计算各期刊总被引频次构成中的自引率(self-citation rate for total citations,RSC,TC)和影响因子构成中的自引率(self-citation rate for impact factor,RSC,IF),全方位比较二者差异程度,揭示不同国家和地区人为操纵期刊影响因子的倾向.结果显示:8 778种期刊集合RSC,TC为0.072,集合RSC,IF为0.112,RSC,TC平均值为0.093,RSC,IF平均值为0.132.排除17种无RSC,IF者,8 761种期刊中,RSC,IF＞RSC,TC者6 954种(79.2％),RSC,TC＞ RSC,IF者1 599种(18.2％),RSC,IF=RSC,TC者208种.Wilcoxon秩检验结果是,Z=59.836,P＜0.001,2组差异有统计学意义.SCI来源期刊中RSC,IF显著高于RSC,TC,捷克、印度、日本、匈牙利和加拿大等国家期刊尤为突出.RSC,IF过度高于RSC,TC,怀疑有人为操纵的可能.“,”This paper explore the differences between the selfcitation rate for total citations (RSC,TC) and self-citation rate for impact factors (RSC,IF) in the SCI-sourced journals,and reveals the manipulation of journals impact factor in different countries and regions.The study objects include 8 778 journals indexed in the JCR (SCI-JCR) in 2015,the RSC,TC and RSC,IF were calculated,and the differences between the RSC,TC and RSC,IF were compared.In the 8 778 joumals,the aggregative RSC,TC and aggregative RSC,IF are 0.072 and 0.112,respectively,the average RSC,TC and average RSC,IF were 0.093 0.132,respectively.In the 8 761 journals (except 17 journals without RSC,IF),6 954 (79.2％) journals have an RSC,IF ＞ RSC,TC,and 1 599 (18.2％) journals have an RSC,TC ＞ RSC,IF,208 journals have an RSC,IF =RSC,TC.Wilcoxon rank test indicated that Z =59.836,P ＜ 0.001,showing the difference between the two groups is statistically significant.RSC,iF in SCIsourced journals is significantly higher than that of RSC,TC,especially in the journals of Czech Republic,India,Japan,Hungary,and Canada.RSC,IF is obviously higher than RSC,TC,which is suspected to be manipulated.