The objective of this study is to offer basic scientific data to support policy decision-making for the improved control of suspended microorganism and to provide baseline data in order to improve the studies of bioaerosol in Korea. Therefore, this study collected and re-analyzed articles on suspended microorganism in various indoor environments and atmospheric environment in Korea that were published in environmental journals since 1980. The survey on the bioaerosol concentration in hospital among the public facilities have been performed abundantly. Also, the survey on the distribution of microorganism during yellow sand, pollen and fungus in atmosphere have been performed mostly. The impactional sampling method that is the sampling method of suspended microorganism have been used mostly in the survey on bioaerosol in Korea. Among the various indoor environments, the pooled average total bacteria concentration of 222.75CFU/㎥ (95% CI：210.29∼245.22CFU/㎥) was found in hospitals. It were lower than the guideline concentration (800CFU/㎥) recommended by the Korean Ministry of Environment. And the pooled average concentration of bacteria and fungi in houses was 148.06CFU/㎥(95% CI : 20.39∼275.74 CFU/㎥) and 22.66CFU/㎥(95% CI：0∼49.73CFU/㎥) respectively. Staphylococcus spp., Micrococcus spp., Enterococcus., Corynebacterium., Escherichia spp., and Pseudormonas spp. for bacteria and Penicillium spp., and Aspergillus spp. for fungi were showed in various indoor environments. Keywords：Meta analysis, Bioaerosol, Indoor air quality, Bacterium, Fungus