Inventory of biological diversity becomes more important as for natural resourse management as well as for sustainable economic development. In this paper, we compared the biodiversity of mesostigmatid mites in Acari reported from Korea relative to the world. Individual researchers` works were firstly complied by Baek as 29 species in 1983, then later total diversity was reported as 108 species in 1998. Recently National Institute of Biological Resourse compiled 28 families and 191 species in 2012. Based on our recent publications and also scrutinized secondary sources, we found 36 families and 282 species from Korea. With this information, we compared the diversity of Korean Mesostigmata in the family level to the world records. From the comparison, we discussed the taxonomic importance as well as further research area for the diversity study.