In order to survey the prevalence of parasites in soil from playground in a detached dwelling area, 162 samples were taken from playground 54 unit. The survey was carried out during 3 months from july in 2000 to september in 2000. The results were obtained as follows : 1. Eggs of Toxocara canis were detected in 30 samples (18.5％) from 162 cases of playground. 2. The 3 kinds of eggs were isolated from the soil of playground. Those were Stronglyoides spp 23.5%, Toxocara canis 18.5% and Trichuris vulpis 4.3%. 3. It was mixed infestation such as single (74.5%), double (23.7%) and triple(1.6%).