Abstract: The feeding activities of Antarctic krill (Euphausia superba) have significantly important impact on the Antarctic marine ecosystem for its key position in the Antarctic food web. Due to the seasonally and spatially difference, the food composition of Antarctic krill has changed and it still has great difficulties to classify and identify those species of stomach content. Selective mechanism also has different opinions. In order to provide the basic information for domestic and foreign researchers to carry out the related research, and provide the scientific minds for further research on its feeding ecology, the present paper attempts to conclude and summarize that the study of Antarctic krill's feeding ecology in the recent century from the aspects of feeding targets, feeding pattern, selective mechanism and feeding rate.