针对国内外著名数据库受控标引的标引方式、标引字段的现状和发展趋势进行深入分析,指出目前虽然受控标引以机器辅助标引为主,但自动标引也有成功案例。标引字段除标引文献主题内容外已扩至对文献中的图表、重要数值、化学分子式等进行标引,并采用与分类标引、非受控语言标引相结合的多维度标引模式。最后,基于目前国内外受控标引发展水平的差异,提出国内应从三个方面予以改进。 According to the domestic and international well-known database indexed indexing methods, the status of the indexed fields and trends in-depth analysis, pointed out that although the controlled indexing mainly by machine-assisted indexing, but there are also successful cases of automatic indexing. In addition to the subject matter of the cited documents, the indexed fields have been extended to index the charts, important numerical values, chemical formulas and the like in the literature, and adopt the multi-dimensional indexing mode which is combined with classification indexing and uncontrolled language indexing . Finally, based on the current differences in the development of controlled indexes both at home and abroad, it is suggested that improvements should be made in three aspects.