The authors examined the composition and provided qualitative and spatio-temporal assessment of the meiozoobenthos on the beaches of the splash zone on the south-western shore of Lake Baikal (Bolshye Koty Bay) during 2008–2011. Fourteen taxonomic groups of the organisms were encountered, among them: oligochaetes (98 %), tardigrades (62 %), nematodes (51 %), cyclopes (48 %), ostracods (44 %) and turbellarians (43 %). From May to October 2010 the average abundance of meiozoobenthic organisms amounted to 123±38 thousand specimens/m2. Maximal abundance of the community (approximately, 500 thousand specimens/m2) was registered in July during an open water period. The highest average abundance of meiozoobenthos (268±74 thousand specimens/m2) was observed in 2009. First data on the response of meiozoobenthic community to wave action were obtained. Meiozoobenthic organisms were found to prefer a ground layer at the depth of 6–13 cm, where their abundance was reported to be maximal.